Home / 145,110.40-217,665.60-39,929.20

Finding the Fourth Proportional to 145,110.40, 217,665.60 and 39,929.20

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Solution

The fourth proportional to 145,110.40, 217,665.60 and 39,929.20 is: 59,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,110.40 : 217,665.60 = 39,929.20 : x
  2. Step 2: Convert to fraction form
    145,110.40/217,665.60 = 39,929.20/x
  3. Step 3: Cross multiply
    145,110.40x = 217,665.60 × 39,929.20
  4. Step 4: Simplify right side
    145,110.40x = 8,691,213,275.52
  5. Step 5: Solve for x
    x = 8,691,213,275.52/145,110.40
  6. Step 6: Final answer
    x = 59,893.80

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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.