Home / 132,343.65-198,403.86-57,407.40

Finding the Fourth Proportional to 132,343.65, 198,403.86 and 57,407.40

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Solution

The fourth proportional to 132,343.65, 198,403.86 and 57,407.40 is: 86,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,343.65 : 198,403.86 = 57,407.40 : x
  2. Step 2: Convert to fraction form
    132,343.65/198,403.86 = 57,407.40/x
  3. Step 3: Cross multiply
    132,343.65x = 198,403.86 × 57,407.40
  4. Step 4: Simplify right side
    132,343.65x = 11,389,849,752.56
  5. Step 5: Solve for x
    x = 11,389,849,752.56/132,343.65
  6. Step 6: Final answer
    x = 86,062.68

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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.