Home / 140,779.71-194,276.07-77,117.76

Finding the Fourth Proportional to 140,779.71, 194,276.07 and 77,117.76

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Solution

The fourth proportional to 140,779.71, 194,276.07 and 77,117.76 is: 106,422.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,779.71 : 194,276.07 = 77,117.76 : x
  2. Step 2: Convert to fraction form
    140,779.71/194,276.07 = 77,117.76/x
  3. Step 3: Cross multiply
    140,779.71x = 194,276.07 × 77,117.76
  4. Step 4: Simplify right side
    140,779.71x = 14,982,135,340.00
  5. Step 5: Solve for x
    x = 14,982,135,340.00/140,779.71
  6. Step 6: Final answer
    x = 106,422.55

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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.