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Finding the Fourth Proportional to 97,699.40, 146,549.10 and 88,659.80

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Solution

The fourth proportional to 97,699.40, 146,549.10 and 88,659.80 is: 132,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,699.40 : 146,549.10 = 88,659.80 : x
  2. Step 2: Convert to fraction form
    97,699.40/146,549.10 = 88,659.80/x
  3. Step 3: Cross multiply
    97,699.40x = 146,549.10 × 88,659.80
  4. Step 4: Simplify right side
    97,699.40x = 12,993,013,896.18
  5. Step 5: Solve for x
    x = 12,993,013,896.18/97,699.40
  6. Step 6: Final answer
    x = 132,989.70

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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.