Home / 135,693.79-187,134.87-84,711.24

Finding the Fourth Proportional to 135,693.79, 187,134.87 and 84,711.24

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Solution

The fourth proportional to 135,693.79, 187,134.87 and 84,711.24 is: 116,825.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,693.79 : 187,134.87 = 84,711.24 : x
  2. Step 2: Convert to fraction form
    135,693.79/187,134.87 = 84,711.24/x
  3. Step 3: Cross multiply
    135,693.79x = 187,134.87 × 84,711.24
  4. Step 4: Simplify right side
    135,693.79x = 15,852,426,884.94
  5. Step 5: Solve for x
    x = 15,852,426,884.94/135,693.79
  6. Step 6: Final answer
    x = 116,825.00

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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.