Home / 142,370.52-196,475.45-78,712.44

Finding the Fourth Proportional to 142,370.52, 196,475.45 and 78,712.44

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Solution

The fourth proportional to 142,370.52, 196,475.45 and 78,712.44 is: 108,625.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,370.52 : 196,475.45 = 78,712.44 : x
  2. Step 2: Convert to fraction form
    142,370.52/196,475.45 = 78,712.44/x
  3. Step 3: Cross multiply
    142,370.52x = 196,475.45 × 78,712.44
  4. Step 4: Simplify right side
    142,370.52x = 15,465,061,676.04
  5. Step 5: Solve for x
    x = 15,465,061,676.04/142,370.52
  6. Step 6: Final answer
    x = 108,625.45

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1.5x scale

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.