Home / 109,114.45-150,647.12-74,716.74

Finding the Fourth Proportional to 109,114.45, 150,647.12 and 74,716.74

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Solution

The fourth proportional to 109,114.45, 150,647.12 and 74,716.74 is: 103,156.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,114.45 : 150,647.12 = 74,716.74 : x
  2. Step 2: Convert to fraction form
    109,114.45/150,647.12 = 74,716.74/x
  3. Step 3: Cross multiply
    109,114.45x = 150,647.12 × 74,716.74
  4. Step 4: Simplify right side
    109,114.45x = 11,255,862,023.67
  5. Step 5: Solve for x
    x = 11,255,862,023.67/109,114.45
  6. Step 6: Final answer
    x = 103,156.47

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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.