Home / 189,663.08-284,536.99-71,335.45

Finding the Fourth Proportional to 189,663.08, 284,536.99 and 71,335.45

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Solution

The fourth proportional to 189,663.08, 284,536.99 and 71,335.45 is: 107,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,663.08 : 284,536.99 = 71,335.45 : x
  2. Step 2: Convert to fraction form
    189,663.08/284,536.99 = 71,335.45/x
  3. Step 3: Cross multiply
    189,663.08x = 284,536.99 × 71,335.45
  4. Step 4: Simplify right side
    189,663.08x = 20,297,572,800.61
  5. Step 5: Solve for x
    x = 20,297,572,800.61/189,663.08
  6. Step 6: Final answer
    x = 107,019.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.