Home / 112,114.08-154,716.48-61,812

Finding the Fourth Proportional to 112,114.08, 154,716.48 and 61,812

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Solution

The fourth proportional to 112,114.08, 154,716.48 and 61,812 is: 85,300.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,114.08 : 154,716.48 = 61,812 : x
  2. Step 2: Convert to fraction form
    112,114.08/154,716.48 = 61,812/x
  3. Step 3: Cross multiply
    112,114.08x = 154,716.48 × 61,812
  4. Step 4: Simplify right side
    112,114.08x = 9,563,335,061.76
  5. Step 5: Solve for x
    x = 9,563,335,061.76/112,114.08
  6. Step 6: Final answer
    x = 85,300.04

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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.