Home / 156,947.90-235,421.85-38,617.70

Finding the Fourth Proportional to 156,947.90, 235,421.85 and 38,617.70

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Solution

The fourth proportional to 156,947.90, 235,421.85 and 38,617.70 is: 57,926.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,947.90 : 235,421.85 = 38,617.70 : x
  2. Step 2: Convert to fraction form
    156,947.90/235,421.85 = 38,617.70/x
  3. Step 3: Cross multiply
    156,947.90x = 235,421.85 × 38,617.70
  4. Step 4: Simplify right side
    156,947.90x = 9,091,450,376.75
  5. Step 5: Solve for x
    x = 9,091,450,376.75/156,947.90
  6. Step 6: Final answer
    x = 57,926.55

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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.