Home / 112,810.60-155,667.78-67,479.40

Finding the Fourth Proportional to 112,810.60, 155,667.78 and 67,479.40

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Solution

The fourth proportional to 112,810.60, 155,667.78 and 67,479.40 is: 93,115.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,810.60 : 155,667.78 = 67,479.40 : x
  2. Step 2: Convert to fraction form
    112,810.60/155,667.78 = 67,479.40/x
  3. Step 3: Cross multiply
    112,810.60x = 155,667.78 × 67,479.40
  4. Step 4: Simplify right side
    112,810.60x = 10,504,368,393.73
  5. Step 5: Solve for x
    x = 10,504,368,393.73/112,810.60
  6. Step 6: Final answer
    x = 93,115.08

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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.