Home / 128,087.46-176,766.66-70,734.87

Finding the Fourth Proportional to 128,087.46, 176,766.66 and 70,734.87

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Solution

The fourth proportional to 128,087.46, 176,766.66 and 70,734.87 is: 97,617.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,087.46 : 176,766.66 = 70,734.87 : x
  2. Step 2: Convert to fraction form
    128,087.46/176,766.66 = 70,734.87/x
  3. Step 3: Cross multiply
    128,087.46x = 176,766.66 × 70,734.87
  4. Step 4: Simplify right side
    128,087.46x = 12,503,566,715.43
  5. Step 5: Solve for x
    x = 12,503,566,715.43/128,087.46
  6. Step 6: Final answer
    x = 97,617.41

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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.