Home / 112,842.16-155,718.79-61,853.77

Finding the Fourth Proportional to 112,842.16, 155,718.79 and 61,853.77

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Solution

The fourth proportional to 112,842.16, 155,718.79 and 61,853.77 is: 85,356.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,842.16 : 155,718.79 = 61,853.77 : x
  2. Step 2: Convert to fraction form
    112,842.16/155,718.79 = 61,853.77/x
  3. Step 3: Cross multiply
    112,842.16x = 155,718.79 × 61,853.77
  4. Step 4: Simplify right side
    112,842.16x = 9,631,794,261.35
  5. Step 5: Solve for x
    x = 9,631,794,261.35/112,842.16
  6. Step 6: Final answer
    x = 85,356.35

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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.