Home / 105,254.10-157,943.39-38,740.95

Finding the Fourth Proportional to 105,254.10, 157,943.39 and 38,740.95

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Solution

The fourth proportional to 105,254.10, 157,943.39 and 38,740.95 is: 58,134.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,254.10 : 157,943.39 = 38,740.95 : x
  2. Step 2: Convert to fraction form
    105,254.10/157,943.39 = 38,740.95/x
  3. Step 3: Cross multiply
    105,254.10x = 157,943.39 × 38,740.95
  4. Step 4: Simplify right side
    105,254.10x = 6,118,876,781.12
  5. Step 5: Solve for x
    x = 6,118,876,781.12/105,254.10
  6. Step 6: Final answer
    x = 58,134.33

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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.