Home / 111,852.13-154,454.39-76,127.49

Finding the Fourth Proportional to 111,852.13, 154,454.39 and 76,127.49

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Solution

The fourth proportional to 111,852.13, 154,454.39 and 76,127.49 is: 105,122.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,852.13 : 154,454.39 = 76,127.49 : x
  2. Step 2: Convert to fraction form
    111,852.13/154,454.39 = 76,127.49/x
  3. Step 3: Cross multiply
    111,852.13x = 154,454.39 × 76,127.49
  4. Step 4: Simplify right side
    111,852.13x = 11,758,223,877.27
  5. Step 5: Solve for x
    x = 11,758,223,877.27/111,852.13
  6. Step 6: Final answer
    x = 105,122.93

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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.