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Finding the Fourth Proportional to 162,384.61, 243,797.79 and 91,357.23

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Solution

The fourth proportional to 162,384.61, 243,797.79 and 91,357.23 is: 137,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,384.61 : 243,797.79 = 91,357.23 : x
  2. Step 2: Convert to fraction form
    162,384.61/243,797.79 = 91,357.23/x
  3. Step 3: Cross multiply
    162,384.61x = 243,797.79 × 91,357.23
  4. Step 4: Simplify right side
    162,384.61x = 22,272,690,774.52
  5. Step 5: Solve for x
    x = 22,272,690,774.52/162,384.61
  6. Step 6: Final answer
    x = 137,160.11

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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.