Home / 141,091.20-194,705.28-77,428.86

Finding the Fourth Proportional to 141,091.20, 194,705.28 and 77,428.86

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Solution

The fourth proportional to 141,091.20, 194,705.28 and 77,428.86 is: 106,851.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,091.20 : 194,705.28 = 77,428.86 : x
  2. Step 2: Convert to fraction form
    141,091.20/194,705.28 = 77,428.86/x
  3. Step 3: Cross multiply
    141,091.20x = 194,705.28 × 77,428.86
  4. Step 4: Simplify right side
    141,091.20x = 15,075,807,866.38
  5. Step 5: Solve for x
    x = 15,075,807,866.38/141,091.20
  6. Step 6: Final answer
    x = 106,851.51

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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.