Home / 112,110-154,711.80-61,812.24

Finding the Fourth Proportional to 112,110, 154,711.80 and 61,812.24

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Solution

The fourth proportional to 112,110, 154,711.80 and 61,812.24 is: 85,300.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,110 : 154,711.80 = 61,812.24 : x
  2. Step 2: Convert to fraction form
    112,110/154,711.80 = 61,812.24/x
  3. Step 3: Cross multiply
    112,110x = 154,711.80 × 61,812.24
  4. Step 4: Simplify right side
    112,110x = 9,563,082,912.43
  5. Step 5: Solve for x
    x = 9,563,082,912.43/112,110
  6. Step 6: Final answer
    x = 85,300.89

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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.