Home / 102,653,208.39-141,613,941.92-90,904,449.99

Finding the Fourth Proportional to 102,653,208.39, 141,613,941.92 and 90,904,449.99

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Solution

The fourth proportional to 102,653,208.39, 141,613,941.92 and 90,904,449.99 is: 125,406,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,653,208.39 : 141,613,941.92 = 90,904,449.99 : x
  2. Step 2: Convert to fraction form
    102,653,208.39/141,613,941.92 = 90,904,449.99/x
  3. Step 3: Cross multiply
    102,653,208.39x = 141,613,941.92 × 90,904,449.99
  4. Step 4: Simplify right side
    102,653,208.39x = 12,873,337,500,698,880
  5. Step 5: Solve for x
    x = 12,873,337,500,698,880/102,653,208.39
  6. Step 6: Final answer
    x = 125,406,090.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.