Home / 147,220.11-202,959.68-99,397.71

Finding the Fourth Proportional to 147,220.11, 202,959.68 and 99,397.71

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Solution

The fourth proportional to 147,220.11, 202,959.68 and 99,397.71 is: 137,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,220.11 : 202,959.68 = 99,397.71 : x
  2. Step 2: Convert to fraction form
    147,220.11/202,959.68 = 99,397.71/x
  3. Step 3: Cross multiply
    147,220.11x = 202,959.68 × 99,397.71
  4. Step 4: Simplify right side
    147,220.11x = 20,173,726,917.34
  5. Step 5: Solve for x
    x = 20,173,726,917.34/147,220.11
  6. Step 6: Final answer
    x = 137,031.05

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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.