Home / 142,426.56-213,639.57-53,699.97

Finding the Fourth Proportional to 142,426.56, 213,639.57 and 53,699.97

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Solution

The fourth proportional to 142,426.56, 213,639.57 and 53,699.97 is: 80,549.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,426.56 : 213,639.57 = 53,699.97 : x
  2. Step 2: Convert to fraction form
    142,426.56/213,639.57 = 53,699.97/x
  3. Step 3: Cross multiply
    142,426.56x = 213,639.57 × 53,699.97
  4. Step 4: Simplify right side
    142,426.56x = 11,472,438,499.81
  5. Step 5: Solve for x
    x = 11,472,438,499.81/142,426.56
  6. Step 6: Final answer
    x = 80,549.85

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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.