Home / 217,124.18-299,625.98-121,630.22

Finding the Fourth Proportional to 217,124.18, 299,625.98 and 121,630.22

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Solution

The fourth proportional to 217,124.18, 299,625.98 and 121,630.22 is: 167,846.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,124.18 : 299,625.98 = 121,630.22 : x
  2. Step 2: Convert to fraction form
    217,124.18/299,625.98 = 121,630.22/x
  3. Step 3: Cross multiply
    217,124.18x = 299,625.98 × 121,630.22
  4. Step 4: Simplify right side
    217,124.18x = 36,443,573,865.12
  5. Step 5: Solve for x
    x = 36,443,573,865.12/217,124.18
  6. Step 6: Final answer
    x = 167,846.69

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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.