Home / 112,442.93-155,170.87-61,455.65

Finding the Fourth Proportional to 112,442.93, 155,170.87 and 61,455.65

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Solution

The fourth proportional to 112,442.93, 155,170.87 and 61,455.65 is: 84,808.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,442.93 : 155,170.87 = 61,455.65 : x
  2. Step 2: Convert to fraction form
    112,442.93/155,170.87 = 61,455.65/x
  3. Step 3: Cross multiply
    112,442.93x = 155,170.87 × 61,455.65
  4. Step 4: Simplify right side
    112,442.93x = 9,536,127,141.66
  5. Step 5: Solve for x
    x = 9,536,127,141.66/112,442.93
  6. Step 6: Final answer
    x = 84,808.60

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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.