Home / 132,345.60-198,518.40-90,355.20

Finding the Fourth Proportional to 132,345.60, 198,518.40 and 90,355.20

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Solution

The fourth proportional to 132,345.60, 198,518.40 and 90,355.20 is: 135,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,345.60 : 198,518.40 = 90,355.20 : x
  2. Step 2: Convert to fraction form
    132,345.60/198,518.40 = 90,355.20/x
  3. Step 3: Cross multiply
    132,345.60x = 198,518.40 × 90,355.20
  4. Step 4: Simplify right side
    132,345.60x = 17,937,169,735.68
  5. Step 5: Solve for x
    x = 17,937,169,735.68/132,345.60
  6. Step 6: Final answer
    x = 135,532.80

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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.