Home / 112,144.28-154,758.13-61,157.81

Finding the Fourth Proportional to 112,144.28, 154,758.13 and 61,157.81

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Solution

The fourth proportional to 112,144.28, 154,758.13 and 61,157.81 is: 84,397.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,144.28 : 154,758.13 = 61,157.81 : x
  2. Step 2: Convert to fraction form
    112,144.28/154,758.13 = 61,157.81/x
  3. Step 3: Cross multiply
    112,144.28x = 154,758.13 × 61,157.81
  4. Step 4: Simplify right side
    112,144.28x = 9,464,668,544.50
  5. Step 5: Solve for x
    x = 9,464,668,544.50/112,144.28
  6. Step 6: Final answer
    x = 84,397.25

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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.