Home / 132,581.40-182,961.09-72,152.10

Finding the Fourth Proportional to 132,581.40, 182,961.09 and 72,152.10

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Solution

The fourth proportional to 132,581.40, 182,961.09 and 72,152.10 is: 99,569.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,581.40 : 182,961.09 = 72,152.10 : x
  2. Step 2: Convert to fraction form
    132,581.40/182,961.09 = 72,152.10/x
  3. Step 3: Cross multiply
    132,581.40x = 182,961.09 × 72,152.10
  4. Step 4: Simplify right side
    132,581.40x = 13,201,026,861.79
  5. Step 5: Solve for x
    x = 13,201,026,861.79/132,581.40
  6. Step 6: Final answer
    x = 99,569.22

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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.