Home / 135,459.02-186,935.46-78,097.34

Finding the Fourth Proportional to 135,459.02, 186,935.46 and 78,097.34

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Solution

The fourth proportional to 135,459.02, 186,935.46 and 78,097.34 is: 107,775.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,459.02 : 186,935.46 = 78,097.34 : x
  2. Step 2: Convert to fraction form
    135,459.02/186,935.46 = 78,097.34/x
  3. Step 3: Cross multiply
    135,459.02x = 186,935.46 × 78,097.34
  4. Step 4: Simplify right side
    135,459.02x = 14,599,162,177.68
  5. Step 5: Solve for x
    x = 14,599,162,177.68/135,459.02
  6. Step 6: Final answer
    x = 107,775.49

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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.