Home / 124,129.28-186,148.56-45,220.16

Finding the Fourth Proportional to 124,129.28, 186,148.56 and 45,220.16

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Solution

The fourth proportional to 124,129.28, 186,148.56 and 45,220.16 is: 67,813.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,129.28 : 186,148.56 = 45,220.16 : x
  2. Step 2: Convert to fraction form
    124,129.28/186,148.56 = 45,220.16/x
  3. Step 3: Cross multiply
    124,129.28x = 186,148.56 × 45,220.16
  4. Step 4: Simplify right side
    124,129.28x = 8,417,667,666.97
  5. Step 5: Solve for x
    x = 8,417,667,666.97/124,129.28
  6. Step 6: Final answer
    x = 67,813.72

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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.