Home / 112,140.35-154,747.87-61,153.18

Finding the Fourth Proportional to 112,140.35, 154,747.87 and 61,153.18

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Solution

The fourth proportional to 112,140.35, 154,747.87 and 61,153.18 is: 84,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,140.35 : 154,747.87 = 61,153.18 : x
  2. Step 2: Convert to fraction form
    112,140.35/154,747.87 = 61,153.18/x
  3. Step 3: Cross multiply
    112,140.35x = 154,747.87 × 61,153.18
  4. Step 4: Simplify right side
    112,140.35x = 9,463,323,808.97
  5. Step 5: Solve for x
    x = 9,463,323,808.97/112,140.35
  6. Step 6: Final answer
    x = 84,388.21

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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.