Home / 153,895.38-212,463.94-117,309.60

Finding the Fourth Proportional to 153,895.38, 212,463.94 and 117,309.60

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Solution

The fourth proportional to 153,895.38, 212,463.94 and 117,309.60 is: 161,954.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,895.38 : 212,463.94 = 117,309.60 : x
  2. Step 2: Convert to fraction form
    153,895.38/212,463.94 = 117,309.60/x
  3. Step 3: Cross multiply
    153,895.38x = 212,463.94 × 117,309.60
  4. Step 4: Simplify right side
    153,895.38x = 24,924,059,815.82
  5. Step 5: Solve for x
    x = 24,924,059,815.82/153,895.38
  6. Step 6: Final answer
    x = 161,954.57

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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.