Home / 142,963.08-197,282.10-79,295.24

Finding the Fourth Proportional to 142,963.08, 197,282.10 and 79,295.24

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Solution

The fourth proportional to 142,963.08, 197,282.10 and 79,295.24 is: 109,423.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,963.08 : 197,282.10 = 79,295.24 : x
  2. Step 2: Convert to fraction form
    142,963.08/197,282.10 = 79,295.24/x
  3. Step 3: Cross multiply
    142,963.08x = 197,282.10 × 79,295.24
  4. Step 4: Simplify right side
    142,963.08x = 15,643,531,467.20
  5. Step 5: Solve for x
    x = 15,643,531,467.20/142,963.08
  6. Step 6: Final answer
    x = 109,423.58

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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.