Home / 112,401.12-155,044.08-94,205.28

Finding the Fourth Proportional to 112,401.12, 155,044.08 and 94,205.28

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Solution

The fourth proportional to 112,401.12, 155,044.08 and 94,205.28 is: 129,945.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,401.12 : 155,044.08 = 94,205.28 : x
  2. Step 2: Convert to fraction form
    112,401.12/155,044.08 = 94,205.28/x
  3. Step 3: Cross multiply
    112,401.12x = 155,044.08 × 94,205.28
  4. Step 4: Simplify right side
    112,401.12x = 14,605,970,968.74
  5. Step 5: Solve for x
    x = 14,605,970,968.74/112,401.12
  6. Step 6: Final answer
    x = 129,945.07

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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.