Home / 156,988.56-235,315.13-72,650.55

Finding the Fourth Proportional to 156,988.56, 235,315.13 and 72,650.55

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Solution

The fourth proportional to 156,988.56, 235,315.13 and 72,650.55 is: 108,898.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,988.56 : 235,315.13 = 72,650.55 : x
  2. Step 2: Convert to fraction form
    156,988.56/235,315.13 = 72,650.55/x
  3. Step 3: Cross multiply
    156,988.56x = 235,315.13 × 72,650.55
  4. Step 4: Simplify right side
    156,988.56x = 17,095,773,254.57
  5. Step 5: Solve for x
    x = 17,095,773,254.57/156,988.56
  6. Step 6: Final answer
    x = 108,898.21

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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.