Home / 148,002.60-221,894.55-81,517.80

Finding the Fourth Proportional to 148,002.60, 221,894.55 and 81,517.80

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Solution

The fourth proportional to 148,002.60, 221,894.55 and 81,517.80 is: 122,216.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,002.60 : 221,894.55 = 81,517.80 : x
  2. Step 2: Convert to fraction form
    148,002.60/221,894.55 = 81,517.80/x
  3. Step 3: Cross multiply
    148,002.60x = 221,894.55 × 81,517.80
  4. Step 4: Simplify right side
    148,002.60x = 18,088,355,547.99
  5. Step 5: Solve for x
    x = 18,088,355,547.99/148,002.60
  6. Step 6: Final answer
    x = 122,216.47

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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.