Home / 112,158.45-154,774.37-61,857.45

Finding the Fourth Proportional to 112,158.45, 154,774.37 and 61,857.45

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Solution

The fourth proportional to 112,158.45, 154,774.37 and 61,857.45 is: 85,360.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,158.45 : 154,774.37 = 61,857.45 : x
  2. Step 2: Convert to fraction form
    112,158.45/154,774.37 = 61,857.45/x
  3. Step 3: Cross multiply
    112,158.45x = 154,774.37 × 61,857.45
  4. Step 4: Simplify right side
    112,158.45x = 9,573,947,544.27
  5. Step 5: Solve for x
    x = 9,573,947,544.27/112,158.45
  6. Step 6: Final answer
    x = 85,360.91

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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.