Home / 105,397.13-145,444.41-60,089.70

Finding the Fourth Proportional to 105,397.13, 145,444.41 and 60,089.70

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Solution

The fourth proportional to 105,397.13, 145,444.41 and 60,089.70 is: 82,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,397.13 : 145,444.41 = 60,089.70 : x
  2. Step 2: Convert to fraction form
    105,397.13/145,444.41 = 60,089.70/x
  3. Step 3: Cross multiply
    105,397.13x = 145,444.41 × 60,089.70
  4. Step 4: Simplify right side
    105,397.13x = 8,739,710,963.58
  5. Step 5: Solve for x
    x = 8,739,710,963.58/105,397.13
  6. Step 6: Final answer
    x = 82,921.72

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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.