Home / 112,305.18-154,981.50-61,318.02

Finding the Fourth Proportional to 112,305.18, 154,981.50 and 61,318.02

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Solution

The fourth proportional to 112,305.18, 154,981.50 and 61,318.02 is: 84,619.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,305.18 : 154,981.50 = 61,318.02 : x
  2. Step 2: Convert to fraction form
    112,305.18/154,981.50 = 61,318.02/x
  3. Step 3: Cross multiply
    112,305.18x = 154,981.50 × 61,318.02
  4. Step 4: Simplify right side
    112,305.18x = 9,503,158,716.63
  5. Step 5: Solve for x
    x = 9,503,158,716.63/112,305.18
  6. Step 6: Final answer
    x = 84,619.06

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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.