Home / 127,521.68-191,243.62-102,502.40

Finding the Fourth Proportional to 127,521.68, 191,243.62 and 102,502.40

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Solution

The fourth proportional to 127,521.68, 191,243.62 and 102,502.40 is: 153,722.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,521.68 : 191,243.62 = 102,502.40 : x
  2. Step 2: Convert to fraction form
    127,521.68/191,243.62 = 102,502.40/x
  3. Step 3: Cross multiply
    127,521.68x = 191,243.62 × 102,502.40
  4. Step 4: Simplify right side
    127,521.68x = 19,602,930,034.69
  5. Step 5: Solve for x
    x = 19,602,930,034.69/127,521.68
  6. Step 6: Final answer
    x = 153,722.33

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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.