Home / 171,001.90-256,502.85-82,428.40

Finding the Fourth Proportional to 171,001.90, 256,502.85 and 82,428.40

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Solution

The fourth proportional to 171,001.90, 256,502.85 and 82,428.40 is: 123,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,001.90 : 256,502.85 = 82,428.40 : x
  2. Step 2: Convert to fraction form
    171,001.90/256,502.85 = 82,428.40/x
  3. Step 3: Cross multiply
    171,001.90x = 256,502.85 × 82,428.40
  4. Step 4: Simplify right side
    171,001.90x = 21,143,119,520.94
  5. Step 5: Solve for x
    x = 21,143,119,520.94/171,001.90
  6. Step 6: Final answer
    x = 123,642.60

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1.5x scale

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.