Home / 132,568.30-182,946.18-72,140.68

Finding the Fourth Proportional to 132,568.30, 182,946.18 and 72,140.68

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Solution

The fourth proportional to 132,568.30, 182,946.18 and 72,140.68 is: 99,555.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,568.30 : 182,946.18 = 72,140.68 : x
  2. Step 2: Convert to fraction form
    132,568.30/182,946.18 = 72,140.68/x
  3. Step 3: Cross multiply
    132,568.30x = 182,946.18 × 72,140.68
  4. Step 4: Simplify right side
    132,568.30x = 13,197,861,828.60
  5. Step 5: Solve for x
    x = 13,197,861,828.60/132,568.30
  6. Step 6: Final answer
    x = 99,555.19

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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.