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Finding the Fourth Proportional to 162,314.61, 223,989.84 and 90,695.22

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Solution

The fourth proportional to 162,314.61, 223,989.84 and 90,695.22 is: 125,156.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,314.61 : 223,989.84 = 90,695.22 : x
  2. Step 2: Convert to fraction form
    162,314.61/223,989.84 = 90,695.22/x
  3. Step 3: Cross multiply
    162,314.61x = 223,989.84 × 90,695.22
  4. Step 4: Simplify right side
    162,314.61x = 20,314,807,816.56
  5. Step 5: Solve for x
    x = 20,314,807,816.56/162,314.61
  6. Step 6: Final answer
    x = 125,156.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.