Home / 124,763.16-172,124.28-76,933.48

Finding the Fourth Proportional to 124,763.16, 172,124.28 and 76,933.48

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Solution

The fourth proportional to 124,763.16, 172,124.28 and 76,933.48 is: 106,138.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,763.16 : 172,124.28 = 76,933.48 : x
  2. Step 2: Convert to fraction form
    124,763.16/172,124.28 = 76,933.48/x
  3. Step 3: Cross multiply
    124,763.16x = 172,124.28 × 76,933.48
  4. Step 4: Simplify right side
    124,763.16x = 13,242,119,852.89
  5. Step 5: Solve for x
    x = 13,242,119,852.89/124,763.16
  6. Step 6: Final answer
    x = 106,138.06

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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.