Home / 103,264.48-142,552.20-79,382.80

Finding the Fourth Proportional to 103,264.48, 142,552.20 and 79,382.80

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Solution

The fourth proportional to 103,264.48, 142,552.20 and 79,382.80 is: 109,584.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,264.48 : 142,552.20 = 79,382.80 : x
  2. Step 2: Convert to fraction form
    103,264.48/142,552.20 = 79,382.80/x
  3. Step 3: Cross multiply
    103,264.48x = 142,552.20 × 79,382.80
  4. Step 4: Simplify right side
    103,264.48x = 11,316,192,782.16
  5. Step 5: Solve for x
    x = 11,316,192,782.16/103,264.48
  6. Step 6: Final answer
    x = 109,584.56

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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.