Home / 112,120.97-154,728.14-61,133.27

Finding the Fourth Proportional to 112,120.97, 154,728.14 and 61,133.27

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Solution

The fourth proportional to 112,120.97, 154,728.14 and 61,133.27 is: 84,364.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,120.97 : 154,728.14 = 61,133.27 : x
  2. Step 2: Convert to fraction form
    112,120.97/154,728.14 = 61,133.27/x
  3. Step 3: Cross multiply
    112,120.97x = 154,728.14 × 61,133.27
  4. Step 4: Simplify right side
    112,120.97x = 9,459,036,079.91
  5. Step 5: Solve for x
    x = 9,459,036,079.91/112,120.97
  6. Step 6: Final answer
    x = 84,364.56

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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.