Home / 148,526.69-204,979.77-81,471.65

Finding the Fourth Proportional to 148,526.69, 204,979.77 and 81,471.65

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Solution

The fourth proportional to 148,526.69, 204,979.77 and 81,471.65 is: 112,437.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,526.69 : 204,979.77 = 81,471.65 : x
  2. Step 2: Convert to fraction form
    148,526.69/204,979.77 = 81,471.65/x
  3. Step 3: Cross multiply
    148,526.69x = 204,979.77 × 81,471.65
  4. Step 4: Simplify right side
    148,526.69x = 16,700,039,053.62
  5. Step 5: Solve for x
    x = 16,700,039,053.62/148,526.69
  6. Step 6: Final answer
    x = 112,437.97

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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.