Home / 142,937.15-197,265.38-79,295.45

Finding the Fourth Proportional to 142,937.15, 197,265.38 and 79,295.45

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Solution

The fourth proportional to 142,937.15, 197,265.38 and 79,295.45 is: 109,434.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,937.15 : 197,265.38 = 79,295.45 : x
  2. Step 2: Convert to fraction form
    142,937.15/197,265.38 = 79,295.45/x
  3. Step 3: Cross multiply
    142,937.15x = 197,265.38 × 79,295.45
  4. Step 4: Simplify right side
    142,937.15x = 15,642,245,693.72
  5. Step 5: Solve for x
    x = 15,642,245,693.72/142,937.15
  6. Step 6: Final answer
    x = 109,434.43

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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.