Home / 112,657.09-155,466.98-61,669.85

Finding the Fourth Proportional to 112,657.09, 155,466.98 and 61,669.85

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Solution

The fourth proportional to 112,657.09, 155,466.98 and 61,669.85 is: 85,104.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,657.09 : 155,466.98 = 61,669.85 : x
  2. Step 2: Convert to fraction form
    112,657.09/155,466.98 = 61,669.85/x
  3. Step 3: Cross multiply
    112,657.09x = 155,466.98 × 61,669.85
  4. Step 4: Simplify right side
    112,657.09x = 9,587,625,763.76
  5. Step 5: Solve for x
    x = 9,587,625,763.76/112,657.09
  6. Step 6: Final answer
    x = 85,104.50

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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.