Home / 89,186.70-123,160.95-57,410.76

Finding the Fourth Proportional to 89,186.70, 123,160.95 and 57,410.76

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Solution

The fourth proportional to 89,186.70, 123,160.95 and 57,410.76 is: 79,280.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,186.70 : 123,160.95 = 57,410.76 : x
  2. Step 2: Convert to fraction form
    89,186.70/123,160.95 = 57,410.76/x
  3. Step 3: Cross multiply
    89,186.70x = 123,160.95 × 57,410.76
  4. Step 4: Simplify right side
    89,186.70x = 7,070,763,741.82
  5. Step 5: Solve for x
    x = 7,070,763,741.82/89,186.70
  6. Step 6: Final answer
    x = 79,280.47

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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.