Home / 103,799.16-155,130.02-75,778.22

Finding the Fourth Proportional to 103,799.16, 155,130.02 and 75,778.22

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Solution

The fourth proportional to 103,799.16, 155,130.02 and 75,778.22 is: 113,252.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,799.16 : 155,130.02 = 75,778.22 : x
  2. Step 2: Convert to fraction form
    103,799.16/155,130.02 = 75,778.22/x
  3. Step 3: Cross multiply
    103,799.16x = 155,130.02 × 75,778.22
  4. Step 4: Simplify right side
    103,799.16x = 11,755,475,629.62
  5. Step 5: Solve for x
    x = 11,755,475,629.62/103,799.16
  6. Step 6: Final answer
    x = 113,252.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.