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Finding the Fourth Proportional to 162,123.60, 242,710.20 and 115,467.60

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Solution

The fourth proportional to 162,123.60, 242,710.20 and 115,467.60 is: 172,862.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,123.60 : 242,710.20 = 115,467.60 : x
  2. Step 2: Convert to fraction form
    162,123.60/242,710.20 = 115,467.60/x
  3. Step 3: Cross multiply
    162,123.60x = 242,710.20 × 115,467.60
  4. Step 4: Simplify right side
    162,123.60x = 28,025,164,289.52
  5. Step 5: Solve for x
    x = 28,025,164,289.52/162,123.60
  6. Step 6: Final answer
    x = 172,862.95

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1.5x scale

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.