Home / 112,329.93-155,013.03-61,340.70

Finding the Fourth Proportional to 112,329.93, 155,013.03 and 61,340.70

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Solution

The fourth proportional to 112,329.93, 155,013.03 and 61,340.70 is: 84,648.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,329.93 : 155,013.03 = 61,340.70 : x
  2. Step 2: Convert to fraction form
    112,329.93/155,013.03 = 61,340.70/x
  3. Step 3: Cross multiply
    112,329.93x = 155,013.03 × 61,340.70
  4. Step 4: Simplify right side
    112,329.93x = 9,508,607,769.32
  5. Step 5: Solve for x
    x = 9,508,607,769.32/112,329.93
  6. Step 6: Final answer
    x = 84,648.92

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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.