Home / 140,197.71-193,542.21-86,512.29

Finding the Fourth Proportional to 140,197.71, 193,542.21 and 86,512.29

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Solution

The fourth proportional to 140,197.71, 193,542.21 and 86,512.29 is: 119,429.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,197.71 : 193,542.21 = 86,512.29 : x
  2. Step 2: Convert to fraction form
    140,197.71/193,542.21 = 86,512.29/x
  3. Step 3: Cross multiply
    140,197.71x = 193,542.21 × 86,512.29
  4. Step 4: Simplify right side
    140,197.71x = 16,743,779,798.76
  5. Step 5: Solve for x
    x = 16,743,779,798.76/140,197.71
  6. Step 6: Final answer
    x = 119,429.77

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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.