Home / 112,121.87-154,726.20-61,135.00

Finding the Fourth Proportional to 112,121.87, 154,726.20 and 61,135.00

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Solution

The fourth proportional to 112,121.87, 154,726.20 and 61,135.00 is: 84,365.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,121.87 : 154,726.20 = 61,135.00 : x
  2. Step 2: Convert to fraction form
    112,121.87/154,726.20 = 61,135.00/x
  3. Step 3: Cross multiply
    112,121.87x = 154,726.20 × 61,135.00
  4. Step 4: Simplify right side
    112,121.87x = 9,459,185,850.18
  5. Step 5: Solve for x
    x = 9,459,185,850.18/112,121.87
  6. Step 6: Final answer
    x = 84,365.22

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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.