Home / 142,134.86-213,159.54-117,112.88

Finding the Fourth Proportional to 142,134.86, 213,159.54 and 117,112.88

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Solution

The fourth proportional to 142,134.86, 213,159.54 and 117,112.88 is: 175,634.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,134.86 : 213,159.54 = 117,112.88 : x
  2. Step 2: Convert to fraction form
    142,134.86/213,159.54 = 117,112.88/x
  3. Step 3: Cross multiply
    142,134.86x = 213,159.54 × 117,112.88
  4. Step 4: Simplify right side
    142,134.86x = 24,963,727,628.88
  5. Step 5: Solve for x
    x = 24,963,727,628.88/142,134.86
  6. Step 6: Final answer
    x = 175,634.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.