Home / 135,127.78-186,480.60-74,700.34

Finding the Fourth Proportional to 135,127.78, 186,480.60 and 74,700.34

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Solution

The fourth proportional to 135,127.78, 186,480.60 and 74,700.34 is: 103,088.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,127.78 : 186,480.60 = 74,700.34 : x
  2. Step 2: Convert to fraction form
    135,127.78/186,480.60 = 74,700.34/x
  3. Step 3: Cross multiply
    135,127.78x = 186,480.60 × 74,700.34
  4. Step 4: Simplify right side
    135,127.78x = 13,930,164,223.40
  5. Step 5: Solve for x
    x = 13,930,164,223.40/135,127.78
  6. Step 6: Final answer
    x = 103,088.83

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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.