Home / 112,398.29-155,107.83-61,409.93

Finding the Fourth Proportional to 112,398.29, 155,107.83 and 61,409.93

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Solution

The fourth proportional to 112,398.29, 155,107.83 and 61,409.93 is: 84,744.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,398.29 : 155,107.83 = 61,409.93 : x
  2. Step 2: Convert to fraction form
    112,398.29/155,107.83 = 61,409.93/x
  3. Step 3: Cross multiply
    112,398.29x = 155,107.83 × 61,409.93
  4. Step 4: Simplify right side
    112,398.29x = 9,525,160,207.21
  5. Step 5: Solve for x
    x = 9,525,160,207.21/112,398.29
  6. Step 6: Final answer
    x = 84,744.71

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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.