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Finding the Fourth Proportional to 97,801.70, 146,702.55 and 91,240.70

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Solution

The fourth proportional to 97,801.70, 146,702.55 and 91,240.70 is: 136,861.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,801.70 : 146,702.55 = 91,240.70 : x
  2. Step 2: Convert to fraction form
    97,801.70/146,702.55 = 91,240.70/x
  3. Step 3: Cross multiply
    97,801.70x = 146,702.55 × 91,240.70
  4. Step 4: Simplify right side
    97,801.70x = 13,385,243,353.79
  5. Step 5: Solve for x
    x = 13,385,243,353.79/97,801.70
  6. Step 6: Final answer
    x = 136,861.05

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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.