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Finding the Fourth Proportional to 97,411.60, 146,290.20 and 75,278.80

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Solution

The fourth proportional to 97,411.60, 146,290.20 and 75,278.80 is: 113,051.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,411.60 : 146,290.20 = 75,278.80 : x
  2. Step 2: Convert to fraction form
    97,411.60/146,290.20 = 75,278.80/x
  3. Step 3: Cross multiply
    97,411.60x = 146,290.20 × 75,278.80
  4. Step 4: Simplify right side
    97,411.60x = 11,012,550,707.76
  5. Step 5: Solve for x
    x = 11,012,550,707.76/97,411.60
  6. Step 6: Final answer
    x = 113,051.74

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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.