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Finding the Fourth Proportional to 103,281.60, 154,922.40 and 97,060.80

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Solution

The fourth proportional to 103,281.60, 154,922.40 and 97,060.80 is: 145,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,281.60 : 154,922.40 = 97,060.80 : x
  2. Step 2: Convert to fraction form
    103,281.60/154,922.40 = 97,060.80/x
  3. Step 3: Cross multiply
    103,281.60x = 154,922.40 × 97,060.80
  4. Step 4: Simplify right side
    103,281.60x = 15,036,892,081.92
  5. Step 5: Solve for x
    x = 15,036,892,081.92/103,281.60
  6. Step 6: Final answer
    x = 145,591.20

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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.