Home / 142,886.52-197,170.47-79,224.17

Finding the Fourth Proportional to 142,886.52, 197,170.47 and 79,224.17

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Solution

The fourth proportional to 142,886.52, 197,170.47 and 79,224.17 is: 109,322.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,886.52 : 197,170.47 = 79,224.17 : x
  2. Step 2: Convert to fraction form
    142,886.52/197,170.47 = 79,224.17/x
  3. Step 3: Cross multiply
    142,886.52x = 197,170.47 × 79,224.17
  4. Step 4: Simplify right side
    142,886.52x = 15,620,665,848.41
  5. Step 5: Solve for x
    x = 15,620,665,848.41/142,886.52
  6. Step 6: Final answer
    x = 109,322.18

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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.