Home / 112,362.18-155,058.78-61,374.90

Finding the Fourth Proportional to 112,362.18, 155,058.78 and 61,374.90

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Solution

The fourth proportional to 112,362.18, 155,058.78 and 61,374.90 is: 84,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,362.18 : 155,058.78 = 61,374.90 : x
  2. Step 2: Convert to fraction form
    112,362.18/155,058.78 = 61,374.90/x
  3. Step 3: Cross multiply
    112,362.18x = 155,058.78 × 61,374.90
  4. Step 4: Simplify right side
    112,362.18x = 9,516,717,116.62
  5. Step 5: Solve for x
    x = 9,516,717,116.62/112,362.18
  6. Step 6: Final answer
    x = 84,696.80

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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.