Home / 140,778.95-194,275.26-77,117.00

Finding the Fourth Proportional to 140,778.95, 194,275.26 and 77,117.00

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Solution

The fourth proportional to 140,778.95, 194,275.26 and 77,117.00 is: 106,421.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,778.95 : 194,275.26 = 77,117.00 : x
  2. Step 2: Convert to fraction form
    140,778.95/194,275.26 = 77,117.00/x
  3. Step 3: Cross multiply
    140,778.95x = 194,275.26 × 77,117.00
  4. Step 4: Simplify right side
    140,778.95x = 14,981,924,254.04
  5. Step 5: Solve for x
    x = 14,981,924,254.04/140,778.95
  6. Step 6: Final answer
    x = 106,421.63

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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.