Home / 140,130.59-193,386.02-79,711.88

Finding the Fourth Proportional to 140,130.59, 193,386.02 and 79,711.88

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Solution

The fourth proportional to 140,130.59, 193,386.02 and 79,711.88 is: 110,005.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,130.59 : 193,386.02 = 79,711.88 : x
  2. Step 2: Convert to fraction form
    140,130.59/193,386.02 = 79,711.88/x
  3. Step 3: Cross multiply
    140,130.59x = 193,386.02 × 79,711.88
  4. Step 4: Simplify right side
    140,130.59x = 15,415,161,854.43
  5. Step 5: Solve for x
    x = 15,415,161,854.43/140,130.59
  6. Step 6: Final answer
    x = 110,005.69

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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.