Home / 112,398.27-155,107.80-61,409.90

Finding the Fourth Proportional to 112,398.27, 155,107.80 and 61,409.90

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Solution

The fourth proportional to 112,398.27, 155,107.80 and 61,409.90 is: 84,744.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,398.27 : 155,107.80 = 61,409.90 : x
  2. Step 2: Convert to fraction form
    112,398.27/155,107.80 = 61,409.90/x
  3. Step 3: Cross multiply
    112,398.27x = 155,107.80 × 61,409.90
  4. Step 4: Simplify right side
    112,398.27x = 9,525,154,915.35
  5. Step 5: Solve for x
    x = 9,525,154,915.35/112,398.27
  6. Step 6: Final answer
    x = 84,744.68

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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.