Home / 147,042.40-202,910.10-81,627.87

Finding the Fourth Proportional to 147,042.40, 202,910.10 and 81,627.87

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Solution

The fourth proportional to 147,042.40, 202,910.10 and 81,627.87 is: 112,641.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,042.40 : 202,910.10 = 81,627.87 : x
  2. Step 2: Convert to fraction form
    147,042.40/202,910.10 = 81,627.87/x
  3. Step 3: Cross multiply
    147,042.40x = 202,910.10 × 81,627.87
  4. Step 4: Simplify right side
    147,042.40x = 16,563,119,264.49
  5. Step 5: Solve for x
    x = 16,563,119,264.49/147,042.40
  6. Step 6: Final answer
    x = 112,641.79

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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.