Home / 148,521.10-222,781.65-78,537.10

Finding the Fourth Proportional to 148,521.10, 222,781.65 and 78,537.10

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Solution

The fourth proportional to 148,521.10, 222,781.65 and 78,537.10 is: 117,805.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,521.10 : 222,781.65 = 78,537.10 : x
  2. Step 2: Convert to fraction form
    148,521.10/222,781.65 = 78,537.10/x
  3. Step 3: Cross multiply
    148,521.10x = 222,781.65 × 78,537.10
  4. Step 4: Simplify right side
    148,521.10x = 17,496,624,724.22
  5. Step 5: Solve for x
    x = 17,496,624,724.22/148,521.10
  6. Step 6: Final answer
    x = 117,805.65

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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.