Home / 143,718.10-215,577.15-142,335.70

Finding the Fourth Proportional to 143,718.10, 215,577.15 and 142,335.70

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Solution

The fourth proportional to 143,718.10, 215,577.15 and 142,335.70 is: 213,503.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,718.10 : 215,577.15 = 142,335.70 : x
  2. Step 2: Convert to fraction form
    143,718.10/215,577.15 = 142,335.70/x
  3. Step 3: Cross multiply
    143,718.10x = 215,577.15 × 142,335.70
  4. Step 4: Simplify right side
    143,718.10x = 30,684,324,549.26
  5. Step 5: Solve for x
    x = 30,684,324,549.26/143,718.10
  6. Step 6: Final answer
    x = 213,503.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.