Home / 156,668.70-235,132.65-72,558.30

Finding the Fourth Proportional to 156,668.70, 235,132.65 and 72,558.30

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Solution

The fourth proportional to 156,668.70, 235,132.65 and 72,558.30 is: 108,897.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,668.70 : 235,132.65 = 72,558.30 : x
  2. Step 2: Convert to fraction form
    156,668.70/235,132.65 = 72,558.30/x
  3. Step 3: Cross multiply
    156,668.70x = 235,132.65 × 72,558.30
  4. Step 4: Simplify right side
    156,668.70x = 17,060,825,358.50
  5. Step 5: Solve for x
    x = 17,060,825,358.50/156,668.70
  6. Step 6: Final answer
    x = 108,897.47

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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.