Home / 103,947.20-155,920.80-37,397.60

Finding the Fourth Proportional to 103,947.20, 155,920.80 and 37,397.60

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Solution

The fourth proportional to 103,947.20, 155,920.80 and 37,397.60 is: 56,096.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,947.20 : 155,920.80 = 37,397.60 : x
  2. Step 2: Convert to fraction form
    103,947.20/155,920.80 = 37,397.60/x
  3. Step 3: Cross multiply
    103,947.20x = 155,920.80 × 37,397.60
  4. Step 4: Simplify right side
    103,947.20x = 5,831,063,710.08
  5. Step 5: Solve for x
    x = 5,831,063,710.08/103,947.20
  6. Step 6: Final answer
    x = 56,096.40

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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.