Home / 153,895.78-212,464.53-117,310.02

Finding the Fourth Proportional to 153,895.78, 212,464.53 and 117,310.02

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Solution

The fourth proportional to 153,895.78, 212,464.53 and 117,310.02 is: 161,955.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,895.78 : 212,464.53 = 117,310.02 : x
  2. Step 2: Convert to fraction form
    153,895.78/212,464.53 = 117,310.02/x
  3. Step 3: Cross multiply
    153,895.78x = 212,464.53 × 117,310.02
  4. Step 4: Simplify right side
    153,895.78x = 24,924,218,263.59
  5. Step 5: Solve for x
    x = 24,924,218,263.59/153,895.78
  6. Step 6: Final answer
    x = 161,955.18

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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.