Home / 147,029.60-220,414.80-87,802.40

Finding the Fourth Proportional to 147,029.60, 220,414.80 and 87,802.40

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Solution

The fourth proportional to 147,029.60, 220,414.80 and 87,802.40 is: 131,626.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,029.60 : 220,414.80 = 87,802.40 : x
  2. Step 2: Convert to fraction form
    147,029.60/220,414.80 = 87,802.40/x
  3. Step 3: Cross multiply
    147,029.60x = 220,414.80 × 87,802.40
  4. Step 4: Simplify right side
    147,029.60x = 19,352,948,435.52
  5. Step 5: Solve for x
    x = 19,352,948,435.52/147,029.60
  6. Step 6: Final answer
    x = 131,626.21

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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.