Home / 132,545.81-182,911.80-78,829.65

Finding the Fourth Proportional to 132,545.81, 182,911.80 and 78,829.65

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Solution

The fourth proportional to 132,545.81, 182,911.80 and 78,829.65 is: 108,784.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,545.81 : 182,911.80 = 78,829.65 : x
  2. Step 2: Convert to fraction form
    132,545.81/182,911.80 = 78,829.65/x
  3. Step 3: Cross multiply
    132,545.81x = 182,911.80 × 78,829.65
  4. Step 4: Simplify right side
    132,545.81x = 14,418,873,174.87
  5. Step 5: Solve for x
    x = 14,418,873,174.87/132,545.81
  6. Step 6: Final answer
    x = 108,784.07

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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.