Home / 138,914.85-191,702.02-75,252.57

Finding the Fourth Proportional to 138,914.85, 191,702.02 and 75,252.57

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Solution

The fourth proportional to 138,914.85, 191,702.02 and 75,252.57 is: 103,848.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,914.85 : 191,702.02 = 75,252.57 : x
  2. Step 2: Convert to fraction form
    138,914.85/191,702.02 = 75,252.57/x
  3. Step 3: Cross multiply
    138,914.85x = 191,702.02 × 75,252.57
  4. Step 4: Simplify right side
    138,914.85x = 14,426,069,679.19
  5. Step 5: Solve for x
    x = 14,426,069,679.19/138,914.85
  6. Step 6: Final answer
    x = 103,848.29

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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.