Home / 143,201.76-197,612.89-79,543.59

Finding the Fourth Proportional to 143,201.76, 197,612.89 and 79,543.59

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Solution

The fourth proportional to 143,201.76, 197,612.89 and 79,543.59 is: 109,767.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,201.76 : 197,612.89 = 79,543.59 : x
  2. Step 2: Convert to fraction form
    143,201.76/197,612.89 = 79,543.59/x
  3. Step 3: Cross multiply
    143,201.76x = 197,612.89 × 79,543.59
  4. Step 4: Simplify right side
    143,201.76x = 15,718,838,700.88
  5. Step 5: Solve for x
    x = 15,718,838,700.88/143,201.76
  6. Step 6: Final answer
    x = 109,767.08

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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.