Home / 142,148.80-196,157.46-88,432.12

Finding the Fourth Proportional to 142,148.80, 196,157.46 and 88,432.12

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Solution

The fourth proportional to 142,148.80, 196,157.46 and 88,432.12 is: 122,031.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,148.80 : 196,157.46 = 88,432.12 : x
  2. Step 2: Convert to fraction form
    142,148.80/196,157.46 = 88,432.12/x
  3. Step 3: Cross multiply
    142,148.80x = 196,157.46 × 88,432.12
  4. Step 4: Simplify right side
    142,148.80x = 17,346,620,041.62
  5. Step 5: Solve for x
    x = 17,346,620,041.62/142,148.80
  6. Step 6: Final answer
    x = 122,031.42

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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.