Home / 156,631.80-234,947.70-51,461.40

Finding the Fourth Proportional to 156,631.80, 234,947.70 and 51,461.40

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Solution

The fourth proportional to 156,631.80, 234,947.70 and 51,461.40 is: 77,192.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,631.80 : 234,947.70 = 51,461.40 : x
  2. Step 2: Convert to fraction form
    156,631.80/234,947.70 = 51,461.40/x
  3. Step 3: Cross multiply
    156,631.80x = 234,947.70 × 51,461.40
  4. Step 4: Simplify right side
    156,631.80x = 12,090,737,568.78
  5. Step 5: Solve for x
    x = 12,090,737,568.78/156,631.80
  6. Step 6: Final answer
    x = 77,192.10

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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.