Home / 105,387.13-145,436.72-60,069.35

Finding the Fourth Proportional to 105,387.13, 145,436.72 and 60,069.35

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Solution

The fourth proportional to 105,387.13, 145,436.72 and 60,069.35 is: 82,897.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,387.13 : 145,436.72 = 60,069.35 : x
  2. Step 2: Convert to fraction form
    105,387.13/145,436.72 = 60,069.35/x
  3. Step 3: Cross multiply
    105,387.13x = 145,436.72 × 60,069.35
  4. Step 4: Simplify right side
    105,387.13x = 8,736,288,481.70
  5. Step 5: Solve for x
    x = 8,736,288,481.70/105,387.13
  6. Step 6: Final answer
    x = 82,897.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.