Home / 138,726.48-208,038.69-49,956.18

Finding the Fourth Proportional to 138,726.48, 208,038.69 and 49,956.18

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Solution

The fourth proportional to 138,726.48, 208,038.69 and 49,956.18 is: 74,915.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,726.48 : 208,038.69 = 49,956.18 : x
  2. Step 2: Convert to fraction form
    138,726.48/208,038.69 = 49,956.18/x
  3. Step 3: Cross multiply
    138,726.48x = 208,038.69 × 49,956.18
  4. Step 4: Simplify right side
    138,726.48x = 10,392,818,244.60
  5. Step 5: Solve for x
    x = 10,392,818,244.60/138,726.48
  6. Step 6: Final answer
    x = 74,915.89

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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.