Home / 136,155.60-187,880.40-75,716.46

Finding the Fourth Proportional to 136,155.60, 187,880.40 and 75,716.46

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Solution

The fourth proportional to 136,155.60, 187,880.40 and 75,716.46 is: 104,480.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,155.60 : 187,880.40 = 75,716.46 : x
  2. Step 2: Convert to fraction form
    136,155.60/187,880.40 = 75,716.46/x
  3. Step 3: Cross multiply
    136,155.60x = 187,880.40 × 75,716.46
  4. Step 4: Simplify right side
    136,155.60x = 14,225,638,791.38
  5. Step 5: Solve for x
    x = 14,225,638,791.38/136,155.60
  6. Step 6: Final answer
    x = 104,480.75

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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.