Home / 134,139.09-185,101.11-77,554.11

Finding the Fourth Proportional to 134,139.09, 185,101.11 and 77,554.11

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Solution

The fourth proportional to 134,139.09, 185,101.11 and 77,554.11 is: 107,018.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,139.09 : 185,101.11 = 77,554.11 : x
  2. Step 2: Convert to fraction form
    134,139.09/185,101.11 = 77,554.11/x
  3. Step 3: Cross multiply
    134,139.09x = 185,101.11 × 77,554.11
  4. Step 4: Simplify right side
    134,139.09x = 14,355,351,846.06
  5. Step 5: Solve for x
    x = 14,355,351,846.06/134,139.09
  6. Step 6: Final answer
    x = 107,018.41

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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.