Home / 121,328.69-167,446.13-72,946.44

Finding the Fourth Proportional to 121,328.69, 167,446.13 and 72,946.44

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Solution

The fourth proportional to 121,328.69, 167,446.13 and 72,946.44 is: 100,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,328.69 : 167,446.13 = 72,946.44 : x
  2. Step 2: Convert to fraction form
    121,328.69/167,446.13 = 72,946.44/x
  3. Step 3: Cross multiply
    121,328.69x = 167,446.13 × 72,946.44
  4. Step 4: Simplify right side
    121,328.69x = 12,214,598,710.55
  5. Step 5: Solve for x
    x = 12,214,598,710.55/121,328.69
  6. Step 6: Final answer
    x = 100,673.63

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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.