Home / 112,769.67-155,620.82-61,085.79

Finding the Fourth Proportional to 112,769.67, 155,620.82 and 61,085.79

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Solution

The fourth proportional to 112,769.67, 155,620.82 and 61,085.79 is: 84,297.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,769.67 : 155,620.82 = 61,085.79 : x
  2. Step 2: Convert to fraction form
    112,769.67/155,620.82 = 61,085.79/x
  3. Step 3: Cross multiply
    112,769.67x = 155,620.82 × 61,085.79
  4. Step 4: Simplify right side
    112,769.67x = 9,506,220,730.15
  5. Step 5: Solve for x
    x = 9,506,220,730.15/112,769.67
  6. Step 6: Final answer
    x = 84,297.68

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1.5x scale

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.