Home / 128,324.95-177,083.35-70,960.55

Finding the Fourth Proportional to 128,324.95, 177,083.35 and 70,960.55

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Solution

The fourth proportional to 128,324.95, 177,083.35 and 70,960.55 is: 97,922.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,324.95 : 177,083.35 = 70,960.55 : x
  2. Step 2: Convert to fraction form
    128,324.95/177,083.35 = 70,960.55/x
  3. Step 3: Cross multiply
    128,324.95x = 177,083.35 × 70,960.55
  4. Step 4: Simplify right side
    128,324.95x = 12,565,930,849.02
  5. Step 5: Solve for x
    x = 12,565,930,849.02/128,324.95
  6. Step 6: Final answer
    x = 97,922.74

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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.