Home / 143,528.48-215,275.80-38,355.56

Finding the Fourth Proportional to 143,528.48, 215,275.80 and 38,355.56

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Solution

The fourth proportional to 143,528.48, 215,275.80 and 38,355.56 is: 57,528.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,528.48 : 215,275.80 = 38,355.56 : x
  2. Step 2: Convert to fraction form
    143,528.48/215,275.80 = 38,355.56/x
  3. Step 3: Cross multiply
    143,528.48x = 215,275.80 × 38,355.56
  4. Step 4: Simplify right side
    143,528.48x = 8,257,023,863.45
  5. Step 5: Solve for x
    x = 8,257,023,863.45/143,528.48
  6. Step 6: Final answer
    x = 57,528.82

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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.