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Finding the Fourth Proportional to 97,999.70, 146,999.55 and 75,881.30

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Solution

The fourth proportional to 97,999.70, 146,999.55 and 75,881.30 is: 113,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,999.70 : 146,999.55 = 75,881.30 : x
  2. Step 2: Convert to fraction form
    97,999.70/146,999.55 = 75,881.30/x
  3. Step 3: Cross multiply
    97,999.70x = 146,999.55 × 75,881.30
  4. Step 4: Simplify right side
    97,999.70x = 11,154,516,953.42
  5. Step 5: Solve for x
    x = 11,154,516,953.42/97,999.70
  6. Step 6: Final answer
    x = 113,821.95

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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.