Home / 124,713.20-172,103.80-68,124.56

Finding the Fourth Proportional to 124,713.20, 172,103.80 and 68,124.56

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Solution

The fourth proportional to 124,713.20, 172,103.80 and 68,124.56 is: 94,011.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,713.20 : 172,103.80 = 68,124.56 : x
  2. Step 2: Convert to fraction form
    124,713.20/172,103.80 = 68,124.56/x
  3. Step 3: Cross multiply
    124,713.20x = 172,103.80 × 68,124.56
  4. Step 4: Simplify right side
    124,713.20x = 11,724,495,649.33
  5. Step 5: Solve for x
    x = 11,724,495,649.33/124,713.20
  6. Step 6: Final answer
    x = 94,011.67

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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.