Home / 103,612.01-155,417.99-74,087.51

Finding the Fourth Proportional to 103,612.01, 155,417.99 and 74,087.51

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Solution

The fourth proportional to 103,612.01, 155,417.99 and 74,087.51 is: 111,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,612.01 : 155,417.99 = 74,087.51 : x
  2. Step 2: Convert to fraction form
    103,612.01/155,417.99 = 74,087.51/x
  3. Step 3: Cross multiply
    103,612.01x = 155,417.99 × 74,087.51
  4. Step 4: Simplify right side
    103,612.01x = 11,514,530,740.78
  5. Step 5: Solve for x
    x = 11,514,530,740.78/103,612.01
  6. Step 6: Final answer
    x = 111,131.24

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1.5x scale

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.