Home / 91,624.35-137,278.71-71,626.08

Finding the Fourth Proportional to 91,624.35, 137,278.71 and 71,626.08

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Solution

The fourth proportional to 91,624.35, 137,278.71 and 71,626.08 is: 107,315.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,624.35 : 137,278.71 = 71,626.08 : x
  2. Step 2: Convert to fraction form
    91,624.35/137,278.71 = 71,626.08/x
  3. Step 3: Cross multiply
    91,624.35x = 137,278.71 × 71,626.08
  4. Step 4: Simplify right side
    91,624.35x = 9,832,735,864.76
  5. Step 5: Solve for x
    x = 9,832,735,864.76/91,624.35
  6. Step 6: Final answer
    x = 107,315.75

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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.