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Finding the Fourth Proportional to 97,699.80, 146,549.70 and 45,211.80

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Solution

The fourth proportional to 97,699.80, 146,549.70 and 45,211.80 is: 67,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,699.80 : 146,549.70 = 45,211.80 : x
  2. Step 2: Convert to fraction form
    97,699.80/146,549.70 = 45,211.80/x
  3. Step 3: Cross multiply
    97,699.80x = 146,549.70 × 45,211.80
  4. Step 4: Simplify right side
    97,699.80x = 6,625,775,726.46
  5. Step 5: Solve for x
    x = 6,625,775,726.46/97,699.80
  6. Step 6: Final answer
    x = 67,817.70

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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.