Home / 143,653.28-215,475.71-38,472.21

Finding the Fourth Proportional to 143,653.28, 215,475.71 and 38,472.21

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Solution

The fourth proportional to 143,653.28, 215,475.71 and 38,472.21 is: 57,707.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,653.28 : 215,475.71 = 38,472.21 : x
  2. Step 2: Convert to fraction form
    143,653.28/215,475.71 = 38,472.21/x
  3. Step 3: Cross multiply
    143,653.28x = 215,475.71 × 38,472.21
  4. Step 4: Simplify right side
    143,653.28x = 8,289,826,572.66
  5. Step 5: Solve for x
    x = 8,289,826,572.66/143,653.28
  6. Step 6: Final answer
    x = 57,707.19

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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.