Home / 103,613.01-155,419.48-74,088.51

Finding the Fourth Proportional to 103,613.01, 155,419.48 and 74,088.51

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Solution

The fourth proportional to 103,613.01, 155,419.48 and 74,088.51 is: 111,132.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,613.01 : 155,419.48 = 74,088.51 : x
  2. Step 2: Convert to fraction form
    103,613.01/155,419.48 = 74,088.51/x
  3. Step 3: Cross multiply
    103,613.01x = 155,419.48 × 74,088.51
  4. Step 4: Simplify right side
    103,613.01x = 11,514,797,698.17
  5. Step 5: Solve for x
    x = 11,514,797,698.17/103,613.01
  6. Step 6: Final answer
    x = 111,132.74

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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.