Home / 124,763.14-172,124.31-76,933.45

Finding the Fourth Proportional to 124,763.14, 172,124.31 and 76,933.45

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Solution

The fourth proportional to 124,763.14, 172,124.31 and 76,933.45 is: 106,138.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,763.14 : 172,124.31 = 76,933.45 : x
  2. Step 2: Convert to fraction form
    124,763.14/172,124.31 = 76,933.45/x
  3. Step 3: Cross multiply
    124,763.14x = 172,124.31 × 76,933.45
  4. Step 4: Simplify right side
    124,763.14x = 13,242,116,997.17
  5. Step 5: Solve for x
    x = 13,242,116,997.17/124,763.14
  6. Step 6: Final answer
    x = 106,138.05

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1.5x scale

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.