Home / 115,497.19-159,461.12-103,376.66

Finding the Fourth Proportional to 115,497.19, 159,461.12 and 103,376.66

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Solution

The fourth proportional to 115,497.19, 159,461.12 and 103,376.66 is: 142,726.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,497.19 : 159,461.12 = 103,376.66 : x
  2. Step 2: Convert to fraction form
    115,497.19/159,461.12 = 103,376.66/x
  3. Step 3: Cross multiply
    115,497.19x = 159,461.12 × 103,376.66
  4. Step 4: Simplify right side
    115,497.19x = 16,484,557,446.60
  5. Step 5: Solve for x
    x = 16,484,557,446.60/115,497.19
  6. Step 6: Final answer
    x = 142,726.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.