Home / 142,962.08-197,280.72-79,294.24

Finding the Fourth Proportional to 142,962.08, 197,280.72 and 79,294.24

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Solution

The fourth proportional to 142,962.08, 197,280.72 and 79,294.24 is: 109,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,962.08 : 197,280.72 = 79,294.24 : x
  2. Step 2: Convert to fraction form
    142,962.08/197,280.72 = 79,294.24/x
  3. Step 3: Cross multiply
    142,962.08x = 197,280.72 × 79,294.24
  4. Step 4: Simplify right side
    142,962.08x = 15,643,224,759.05
  5. Step 5: Solve for x
    x = 15,643,224,759.05/142,962.08
  6. Step 6: Final answer
    x = 109,422.20

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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.