Home / 142,948.64-197,292.75-79,306.94

Finding the Fourth Proportional to 142,948.64, 197,292.75 and 79,306.94

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Solution

The fourth proportional to 142,948.64, 197,292.75 and 79,306.94 is: 109,456.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,948.64 : 197,292.75 = 79,306.94 : x
  2. Step 2: Convert to fraction form
    142,948.64/197,292.75 = 79,306.94/x
  3. Step 3: Cross multiply
    142,948.64x = 197,292.75 × 79,306.94
  4. Step 4: Simplify right side
    142,948.64x = 15,646,684,482.52
  5. Step 5: Solve for x
    x = 15,646,684,482.52/142,948.64
  6. Step 6: Final answer
    x = 109,456.68

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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.