Home / 103,134.02-142,324.78-57,812.04

Finding the Fourth Proportional to 103,134.02, 142,324.78 and 57,812.04

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Solution

The fourth proportional to 103,134.02, 142,324.78 and 57,812.04 is: 79,780.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,134.02 : 142,324.78 = 57,812.04 : x
  2. Step 2: Convert to fraction form
    103,134.02/142,324.78 = 57,812.04/x
  3. Step 3: Cross multiply
    103,134.02x = 142,324.78 × 57,812.04
  4. Step 4: Simplify right side
    103,134.02x = 8,228,085,015.77
  5. Step 5: Solve for x
    x = 8,228,085,015.77/103,134.02
  6. Step 6: Final answer
    x = 79,780.51

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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.