Home / 112,158.09-154,773.86-61,857.09

Finding the Fourth Proportional to 112,158.09, 154,773.86 and 61,857.09

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Solution

The fourth proportional to 112,158.09, 154,773.86 and 61,857.09 is: 85,360.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,158.09 : 154,773.86 = 61,857.09 : x
  2. Step 2: Convert to fraction form
    112,158.09/154,773.86 = 61,857.09/x
  3. Step 3: Cross multiply
    112,158.09x = 154,773.86 × 61,857.09
  4. Step 4: Simplify right side
    112,158.09x = 9,573,860,278.38
  5. Step 5: Solve for x
    x = 9,573,860,278.38/112,158.09
  6. Step 6: Final answer
    x = 85,360.41

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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.