Home / 103,430.60-155,109.45-36,872.90

Finding the Fourth Proportional to 103,430.60, 155,109.45 and 36,872.90

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Solution

The fourth proportional to 103,430.60, 155,109.45 and 36,872.90 is: 55,296.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,430.60 : 155,109.45 = 36,872.90 : x
  2. Step 2: Convert to fraction form
    103,430.60/155,109.45 = 36,872.90/x
  3. Step 3: Cross multiply
    103,430.60x = 155,109.45 × 36,872.90
  4. Step 4: Simplify right side
    103,430.60x = 5,719,335,238.91
  5. Step 5: Solve for x
    x = 5,719,335,238.91/103,430.60
  6. Step 6: Final answer
    x = 55,296.36

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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.