Home / 142,352.91-196,446.96-77,822.40

Finding the Fourth Proportional to 142,352.91, 196,446.96 and 77,822.40

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Solution

The fourth proportional to 142,352.91, 196,446.96 and 77,822.40 is: 107,394.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,352.91 : 196,446.96 = 77,822.40 : x
  2. Step 2: Convert to fraction form
    142,352.91/196,446.96 = 77,822.40/x
  3. Step 3: Cross multiply
    142,352.91x = 196,446.96 × 77,822.40
  4. Step 4: Simplify right side
    142,352.91x = 15,287,973,899.90
  5. Step 5: Solve for x
    x = 15,287,973,899.90/142,352.91
  6. Step 6: Final answer
    x = 107,394.88

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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.