Home / 147,240.74-220,424.78-90,899.70

Finding the Fourth Proportional to 147,240.74, 220,424.78 and 90,899.70

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Solution

The fourth proportional to 147,240.74, 220,424.78 and 90,899.70 is: 136,080.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,240.74 : 220,424.78 = 90,899.70 : x
  2. Step 2: Convert to fraction form
    147,240.74/220,424.78 = 90,899.70/x
  3. Step 3: Cross multiply
    147,240.74x = 220,424.78 × 90,899.70
  4. Step 4: Simplify right side
    147,240.74x = 20,036,546,374.57
  5. Step 5: Solve for x
    x = 20,036,546,374.57/147,240.74
  6. Step 6: Final answer
    x = 136,080.18

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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.