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Finding the Fourth Proportional to 120,232.72, 165,818.88 and 72,476.08

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Solution

The fourth proportional to 120,232.72, 165,818.88 and 72,476.08 is: 99,955.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,232.72 : 165,818.88 = 72,476.08 : x
  2. Step 2: Convert to fraction form
    120,232.72/165,818.88 = 72,476.08/x
  3. Step 3: Cross multiply
    120,232.72x = 165,818.88 × 72,476.08
  4. Step 4: Simplify right side
    120,232.72x = 12,017,902,412.39
  5. Step 5: Solve for x
    x = 12,017,902,412.39/120,232.72
  6. Step 6: Final answer
    x = 99,955.34

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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.