Home / 120,827.54-166,802.61-75,530.72

Finding the Fourth Proportional to 120,827.54, 166,802.61 and 75,530.72

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Solution

The fourth proportional to 120,827.54, 166,802.61 and 75,530.72 is: 104,270.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,827.54 : 166,802.61 = 75,530.72 : x
  2. Step 2: Convert to fraction form
    120,827.54/166,802.61 = 75,530.72/x
  3. Step 3: Cross multiply
    120,827.54x = 166,802.61 × 75,530.72
  4. Step 4: Simplify right side
    120,827.54x = 12,598,720,397.17
  5. Step 5: Solve for x
    x = 12,598,720,397.17/120,827.54
  6. Step 6: Final answer
    x = 104,270.28

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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.