Home / 212,463.60-293,188.32-121,815.20

Finding the Fourth Proportional to 212,463.60, 293,188.32 and 121,815.20

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Solution

The fourth proportional to 212,463.60, 293,188.32 and 121,815.20 is: 168,098.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,463.60 : 293,188.32 = 121,815.20 : x
  2. Step 2: Convert to fraction form
    212,463.60/293,188.32 = 121,815.20/x
  3. Step 3: Cross multiply
    212,463.60x = 293,188.32 × 121,815.20
  4. Step 4: Simplify right side
    212,463.60x = 35,714,793,838.46
  5. Step 5: Solve for x
    x = 35,714,793,838.46/212,463.60
  6. Step 6: Final answer
    x = 168,098.41

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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.