Home / 156,670.70-235,135.65-72,560.30

Finding the Fourth Proportional to 156,670.70, 235,135.65 and 72,560.30

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Solution

The fourth proportional to 156,670.70, 235,135.65 and 72,560.30 is: 108,900.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,670.70 : 235,135.65 = 72,560.30 : x
  2. Step 2: Convert to fraction form
    156,670.70/235,135.65 = 72,560.30/x
  3. Step 3: Cross multiply
    156,670.70x = 235,135.65 × 72,560.30
  4. Step 4: Simplify right side
    156,670.70x = 17,061,513,304.70
  5. Step 5: Solve for x
    x = 17,061,513,304.70/156,670.70
  6. Step 6: Final answer
    x = 108,900.47

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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.