Home / 170,046.20-255,061.20-57,715.40

Finding the Fourth Proportional to 170,046.20, 255,061.20 and 57,715.40

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Solution

The fourth proportional to 170,046.20, 255,061.20 and 57,715.40 is: 86,570.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,046.20 : 255,061.20 = 57,715.40 : x
  2. Step 2: Convert to fraction form
    170,046.20/255,061.20 = 57,715.40/x
  3. Step 3: Cross multiply
    170,046.20x = 255,061.20 × 57,715.40
  4. Step 4: Simplify right side
    170,046.20x = 14,720,959,182.48
  5. Step 5: Solve for x
    x = 14,720,959,182.48/170,046.20
  6. Step 6: Final answer
    x = 86,570.35

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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.