Home / 142,959.04-197,278.43-79,302.76

Finding the Fourth Proportional to 142,959.04, 197,278.43 and 79,302.76

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Solution

The fourth proportional to 142,959.04, 197,278.43 and 79,302.76 is: 109,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,959.04 : 197,278.43 = 79,302.76 : x
  2. Step 2: Convert to fraction form
    142,959.04/197,278.43 = 79,302.76/x
  3. Step 3: Cross multiply
    142,959.04x = 197,278.43 × 79,302.76
  4. Step 4: Simplify right side
    142,959.04x = 15,644,723,987.47
  5. Step 5: Solve for x
    x = 15,644,723,987.47/142,959.04
  6. Step 6: Final answer
    x = 109,435.01

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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.