Home / 156,988.10-235,496.55-51,807.30

Finding the Fourth Proportional to 156,988.10, 235,496.55 and 51,807.30

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Solution

The fourth proportional to 156,988.10, 235,496.55 and 51,807.30 is: 77,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,988.10 : 235,496.55 = 51,807.30 : x
  2. Step 2: Convert to fraction form
    156,988.10/235,496.55 = 51,807.30/x
  3. Step 3: Cross multiply
    156,988.10x = 235,496.55 × 51,807.30
  4. Step 4: Simplify right side
    156,988.10x = 12,200,440,414.82
  5. Step 5: Solve for x
    x = 12,200,440,414.82/156,988.10
  6. Step 6: Final answer
    x = 77,715.70

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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.