Home / 425,977.47-638,726.45-141,515.73

Finding the Fourth Proportional to 425,977.47, 638,726.45 and 141,515.73

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Solution

The fourth proportional to 425,977.47, 638,726.45 and 141,515.73 is: 212,193.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,977.47 : 638,726.45 = 141,515.73 : x
  2. Step 2: Convert to fraction form
    425,977.47/638,726.45 = 141,515.73/x
  3. Step 3: Cross multiply
    425,977.47x = 638,726.45 × 141,515.73
  4. Step 4: Simplify right side
    425,977.47x = 90,389,839,134.48
  5. Step 5: Solve for x
    x = 90,389,839,134.48/425,977.47
  6. Step 6: Final answer
    x = 212,193.94

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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.