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Finding the Fourth Proportional to 141,737.40, 212,778.90 and 71,580.60

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Solution

The fourth proportional to 141,737.40, 212,778.90 and 71,580.60 is: 107,458.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,737.40 : 212,778.90 = 71,580.60 : x
  2. Step 2: Convert to fraction form
    141,737.40/212,778.90 = 71,580.60/x
  3. Step 3: Cross multiply
    141,737.40x = 212,778.90 × 71,580.60
  4. Step 4: Simplify right side
    141,737.40x = 15,230,841,329.34
  5. Step 5: Solve for x
    x = 15,230,841,329.34/141,737.40
  6. Step 6: Final answer
    x = 107,458.17

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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.