Home / 135,301.19-186,735.45-77,929.49

Finding the Fourth Proportional to 135,301.19, 186,735.45 and 77,929.49

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Solution

The fourth proportional to 135,301.19, 186,735.45 and 77,929.49 is: 107,554.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,301.19 : 186,735.45 = 77,929.49 : x
  2. Step 2: Convert to fraction form
    135,301.19/186,735.45 = 77,929.49/x
  3. Step 3: Cross multiply
    135,301.19x = 186,735.45 × 77,929.49
  4. Step 4: Simplify right side
    135,301.19x = 14,552,198,383.42
  5. Step 5: Solve for x
    x = 14,552,198,383.42/135,301.19
  6. Step 6: Final answer
    x = 107,554.10

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1.5x scale

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.