Home / 171,502.35-257,341.27-81,646.62

Finding the Fourth Proportional to 171,502.35, 257,341.27 and 81,646.62

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Solution

The fourth proportional to 171,502.35, 257,341.27 and 81,646.62 is: 122,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,502.35 : 257,341.27 = 81,646.62 : x
  2. Step 2: Convert to fraction form
    171,502.35/257,341.27 = 81,646.62/x
  3. Step 3: Cross multiply
    171,502.35x = 257,341.27 × 81,646.62
  4. Step 4: Simplify right side
    171,502.35x = 21,011,044,882.01
  5. Step 5: Solve for x
    x = 21,011,044,882.01/171,502.35
  6. Step 6: Final answer
    x = 122,511.70

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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.