Home / 142,775.95-196,713.61-94,291.78

Finding the Fourth Proportional to 142,775.95, 196,713.61 and 94,291.78

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Solution

The fourth proportional to 142,775.95, 196,713.61 and 94,291.78 is: 129,913.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,775.95 : 196,713.61 = 94,291.78 : x
  2. Step 2: Convert to fraction form
    142,775.95/196,713.61 = 94,291.78/x
  3. Step 3: Cross multiply
    142,775.95x = 196,713.61 × 94,291.78
  4. Step 4: Simplify right side
    142,775.95x = 18,548,476,437.13
  5. Step 5: Solve for x
    x = 18,548,476,437.13/142,775.95
  6. Step 6: Final answer
    x = 129,913.17

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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.