Home / 142,862.65-197,155.25-79,196.65

Finding the Fourth Proportional to 142,862.65, 197,155.25 and 79,196.65

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Solution

The fourth proportional to 142,862.65, 197,155.25 and 79,196.65 is: 109,294.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,862.65 : 197,155.25 = 79,196.65 : x
  2. Step 2: Convert to fraction form
    142,862.65/197,155.25 = 79,196.65/x
  3. Step 3: Cross multiply
    142,862.65x = 197,155.25 × 79,196.65
  4. Step 4: Simplify right side
    142,862.65x = 15,614,035,329.91
  5. Step 5: Solve for x
    x = 15,614,035,329.91/142,862.65
  6. Step 6: Final answer
    x = 109,294.03

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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.