Home / 143,411.16-215,121.29-43,572.23

Finding the Fourth Proportional to 143,411.16, 215,121.29 and 43,572.23

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Solution

The fourth proportional to 143,411.16, 215,121.29 and 43,572.23 is: 65,359.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,411.16 : 215,121.29 = 43,572.23 : x
  2. Step 2: Convert to fraction form
    143,411.16/215,121.29 = 43,572.23/x
  3. Step 3: Cross multiply
    143,411.16x = 215,121.29 × 43,572.23
  4. Step 4: Simplify right side
    143,411.16x = 9,373,313,032.31
  5. Step 5: Solve for x
    x = 9,373,313,032.31/143,411.16
  6. Step 6: Final answer
    x = 65,359.72

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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.