Home / 132,455.40-198,718.30-57,543.40

Finding the Fourth Proportional to 132,455.40, 198,718.30 and 57,543.40

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Solution

The fourth proportional to 132,455.40, 198,718.30 and 57,543.40 is: 86,330.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,455.40 : 198,718.30 = 57,543.40 : x
  2. Step 2: Convert to fraction form
    132,455.40/198,718.30 = 57,543.40/x
  3. Step 3: Cross multiply
    132,455.40x = 198,718.30 × 57,543.40
  4. Step 4: Simplify right side
    132,455.40x = 11,434,926,624.22
  5. Step 5: Solve for x
    x = 11,434,926,624.22/132,455.40
  6. Step 6: Final answer
    x = 86,330.39

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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.