Home / 103,083.30-142,323.48-79,167.24

Finding the Fourth Proportional to 103,083.30, 142,323.48 and 79,167.24

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Solution

The fourth proportional to 103,083.30, 142,323.48 and 79,167.24 is: 109,303.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,083.30 : 142,323.48 = 79,167.24 : x
  2. Step 2: Convert to fraction form
    103,083.30/142,323.48 = 79,167.24/x
  3. Step 3: Cross multiply
    103,083.30x = 142,323.48 × 79,167.24
  4. Step 4: Simplify right side
    103,083.30x = 11,267,357,098.80
  5. Step 5: Solve for x
    x = 11,267,357,098.80/103,083.30
  6. Step 6: Final answer
    x = 109,303.42

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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.