Home / 212,627.04-293,405.11-121,990.47

Finding the Fourth Proportional to 212,627.04, 293,405.11 and 121,990.47

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Solution

The fourth proportional to 212,627.04, 293,405.11 and 121,990.47 is: 168,335.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,627.04 : 293,405.11 = 121,990.47 : x
  2. Step 2: Convert to fraction form
    212,627.04/293,405.11 = 121,990.47/x
  3. Step 3: Cross multiply
    212,627.04x = 293,405.11 × 121,990.47
  4. Step 4: Simplify right side
    212,627.04x = 35,792,627,269.30
  5. Step 5: Solve for x
    x = 35,792,627,269.30/212,627.04
  6. Step 6: Final answer
    x = 168,335.26

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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.