Home / 112,917.36-155,828.70-61,932.18

Finding the Fourth Proportional to 112,917.36, 155,828.70 and 61,932.18

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Solution

The fourth proportional to 112,917.36, 155,828.70 and 61,932.18 is: 85,467.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,917.36 : 155,828.70 = 61,932.18 : x
  2. Step 2: Convert to fraction form
    112,917.36/155,828.70 = 61,932.18/x
  3. Step 3: Cross multiply
    112,917.36x = 155,828.70 × 61,932.18
  4. Step 4: Simplify right side
    112,917.36x = 9,650,811,097.57
  5. Step 5: Solve for x
    x = 9,650,811,097.57/112,917.36
  6. Step 6: Final answer
    x = 85,467.91

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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.