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Finding the Fourth Proportional to 148,802.56, 205,520.72 and 124,690.88

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Solution

The fourth proportional to 148,802.56, 205,520.72 and 124,690.88 is: 172,218.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,802.56 : 205,520.72 = 124,690.88 : x
  2. Step 2: Convert to fraction form
    148,802.56/205,520.72 = 124,690.88/x
  3. Step 3: Cross multiply
    148,802.56x = 205,520.72 × 124,690.88
  4. Step 4: Simplify right side
    148,802.56x = 25,626,559,435.03
  5. Step 5: Solve for x
    x = 25,626,559,435.03/148,802.56
  6. Step 6: Final answer
    x = 172,218.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.