Home / 124,911.52-172,434.18-79,650.34

Finding the Fourth Proportional to 124,911.52, 172,434.18 and 79,650.34

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Solution

The fourth proportional to 124,911.52, 172,434.18 and 79,650.34 is: 109,953.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,911.52 : 172,434.18 = 79,650.34 : x
  2. Step 2: Convert to fraction form
    124,911.52/172,434.18 = 79,650.34/x
  3. Step 3: Cross multiply
    124,911.52x = 172,434.18 × 79,650.34
  4. Step 4: Simplify right side
    124,911.52x = 13,734,440,202.45
  5. Step 5: Solve for x
    x = 13,734,440,202.45/124,911.52
  6. Step 6: Final answer
    x = 109,953.36

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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.