Home / 112,502.09-155,246.54-61,505.34

Finding the Fourth Proportional to 112,502.09, 155,246.54 and 61,505.34

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Solution

The fourth proportional to 112,502.09, 155,246.54 and 61,505.34 is: 84,873.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,502.09 : 155,246.54 = 61,505.34 : x
  2. Step 2: Convert to fraction form
    112,502.09/155,246.54 = 61,505.34/x
  3. Step 3: Cross multiply
    112,502.09x = 155,246.54 × 61,505.34
  4. Step 4: Simplify right side
    112,502.09x = 9,548,490,919.00
  5. Step 5: Solve for x
    x = 9,548,490,919.00/112,502.09
  6. Step 6: Final answer
    x = 84,873.90

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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.