Home / 110,868.60-166,302.90-66,545.40

Finding the Fourth Proportional to 110,868.60, 166,302.90 and 66,545.40

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Solution

The fourth proportional to 110,868.60, 166,302.90 and 66,545.40 is: 99,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,868.60 : 166,302.90 = 66,545.40 : x
  2. Step 2: Convert to fraction form
    110,868.60/166,302.90 = 66,545.40/x
  3. Step 3: Cross multiply
    110,868.60x = 166,302.90 × 66,545.40
  4. Step 4: Simplify right side
    110,868.60x = 11,066,693,001.66
  5. Step 5: Solve for x
    x = 11,066,693,001.66/110,868.60
  6. Step 6: Final answer
    x = 99,818.10

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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.