Home / 105,275.35-145,279.47-62,270.29

Finding the Fourth Proportional to 105,275.35, 145,279.47 and 62,270.29

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Solution

The fourth proportional to 105,275.35, 145,279.47 and 62,270.29 is: 85,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,275.35 : 145,279.47 = 62,270.29 : x
  2. Step 2: Convert to fraction form
    105,275.35/145,279.47 = 62,270.29/x
  3. Step 3: Cross multiply
    105,275.35x = 145,279.47 × 62,270.29
  4. Step 4: Simplify right side
    105,275.35x = 9,046,594,727.95
  5. Step 5: Solve for x
    x = 9,046,594,727.95/105,275.35
  6. Step 6: Final answer
    x = 85,932.70

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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.