Home / 127,266.90-191,046.15-77,403.30

Finding the Fourth Proportional to 127,266.90, 191,046.15 and 77,403.30

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Solution

The fourth proportional to 127,266.90, 191,046.15 and 77,403.30 is: 116,193.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,266.90 : 191,046.15 = 77,403.30 : x
  2. Step 2: Convert to fraction form
    127,266.90/191,046.15 = 77,403.30/x
  3. Step 3: Cross multiply
    127,266.90x = 191,046.15 × 77,403.30
  4. Step 4: Simplify right side
    127,266.90x = 14,787,602,462.30
  5. Step 5: Solve for x
    x = 14,787,602,462.30/127,266.90
  6. Step 6: Final answer
    x = 116,193.63

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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.