Home / 140,641.39-194,077.63-76,966.88

Finding the Fourth Proportional to 140,641.39, 194,077.63 and 76,966.88

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Solution

The fourth proportional to 140,641.39, 194,077.63 and 76,966.88 is: 106,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,641.39 : 194,077.63 = 76,966.88 : x
  2. Step 2: Convert to fraction form
    140,641.39/194,077.63 = 76,966.88/x
  3. Step 3: Cross multiply
    140,641.39x = 194,077.63 × 76,966.88
  4. Step 4: Simplify right side
    140,641.39x = 14,937,549,658.89
  5. Step 5: Solve for x
    x = 14,937,549,658.89/140,641.39
  6. Step 6: Final answer
    x = 106,210.20

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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.