Home / 142,774.95-196,712.24-94,290.78

Finding the Fourth Proportional to 142,774.95, 196,712.24 and 94,290.78

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Solution

The fourth proportional to 142,774.95, 196,712.24 and 94,290.78 is: 129,911.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,774.95 : 196,712.24 = 94,290.78 : x
  2. Step 2: Convert to fraction form
    142,774.95/196,712.24 = 94,290.78/x
  3. Step 3: Cross multiply
    142,774.95x = 196,712.24 × 94,290.78
  4. Step 4: Simplify right side
    142,774.95x = 18,548,150,073.69
  5. Step 5: Solve for x
    x = 18,548,150,073.69/142,774.95
  6. Step 6: Final answer
    x = 129,911.80

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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.