Home / 127,678.34-191,050.95-75,112.58

Finding the Fourth Proportional to 127,678.34, 191,050.95 and 75,112.58

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Solution

The fourth proportional to 127,678.34, 191,050.95 and 75,112.58 is: 112,394.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,678.34 : 191,050.95 = 75,112.58 : x
  2. Step 2: Convert to fraction form
    127,678.34/191,050.95 = 75,112.58/x
  3. Step 3: Cross multiply
    127,678.34x = 191,050.95 × 75,112.58
  4. Step 4: Simplify right side
    127,678.34x = 14,350,329,765.95
  5. Step 5: Solve for x
    x = 14,350,329,765.95/127,678.34
  6. Step 6: Final answer
    x = 112,394.39

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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.