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Finding the Fourth Proportional to 97,852.70, 135,078.05 and 66,064.66

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Solution

The fourth proportional to 97,852.70, 135,078.05 and 66,064.66 is: 91,197.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,852.70 : 135,078.05 = 66,064.66 : x
  2. Step 2: Convert to fraction form
    97,852.70/135,078.05 = 66,064.66/x
  3. Step 3: Cross multiply
    97,852.70x = 135,078.05 × 66,064.66
  4. Step 4: Simplify right side
    97,852.70x = 8,923,885,446.71
  5. Step 5: Solve for x
    x = 8,923,885,446.71/97,852.70
  6. Step 6: Final answer
    x = 91,197.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.