Home / 147,987.60-221,981.40-136,582.80

Finding the Fourth Proportional to 147,987.60, 221,981.40 and 136,582.80

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Solution

The fourth proportional to 147,987.60, 221,981.40 and 136,582.80 is: 204,874.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,987.60 : 221,981.40 = 136,582.80 : x
  2. Step 2: Convert to fraction form
    147,987.60/221,981.40 = 136,582.80/x
  3. Step 3: Cross multiply
    147,987.60x = 221,981.40 × 136,582.80
  4. Step 4: Simplify right side
    147,987.60x = 30,318,841,159.92
  5. Step 5: Solve for x
    x = 30,318,841,159.92/147,987.60
  6. Step 6: Final answer
    x = 204,874.20

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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.