Home / 111,001.70-166,502.55-69,011.30

Finding the Fourth Proportional to 111,001.70, 166,502.55 and 69,011.30

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Solution

The fourth proportional to 111,001.70, 166,502.55 and 69,011.30 is: 103,516.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,001.70 : 166,502.55 = 69,011.30 : x
  2. Step 2: Convert to fraction form
    111,001.70/166,502.55 = 69,011.30/x
  3. Step 3: Cross multiply
    111,001.70x = 166,502.55 × 69,011.30
  4. Step 4: Simplify right side
    111,001.70x = 11,490,557,428.82
  5. Step 5: Solve for x
    x = 11,490,557,428.82/111,001.70
  6. Step 6: Final answer
    x = 103,516.95

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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.