Home / 128,554.32-177,415.20-94,717.38

Finding the Fourth Proportional to 128,554.32, 177,415.20 and 94,717.38

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Solution

The fourth proportional to 128,554.32, 177,415.20 and 94,717.38 is: 130,717.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,554.32 : 177,415.20 = 94,717.38 : x
  2. Step 2: Convert to fraction form
    128,554.32/177,415.20 = 94,717.38/x
  3. Step 3: Cross multiply
    128,554.32x = 177,415.20 × 94,717.38
  4. Step 4: Simplify right side
    128,554.32x = 16,804,302,916.18
  5. Step 5: Solve for x
    x = 16,804,302,916.18/128,554.32
  6. Step 6: Final answer
    x = 130,717.53

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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.