Home / 217,655.04-300,360.96-122,160

Finding the Fourth Proportional to 217,655.04, 300,360.96 and 122,160

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Solution

The fourth proportional to 217,655.04, 300,360.96 and 122,160 is: 168,579.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,655.04 : 300,360.96 = 122,160 : x
  2. Step 2: Convert to fraction form
    217,655.04/300,360.96 = 122,160/x
  3. Step 3: Cross multiply
    217,655.04x = 300,360.96 × 122,160
  4. Step 4: Simplify right side
    217,655.04x = 36,692,094,873.60
  5. Step 5: Solve for x
    x = 36,692,094,873.60/217,655.04
  6. Step 6: Final answer
    x = 168,579.12

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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.