Home / 111,977.40-154,526.49-60,990.72

Finding the Fourth Proportional to 111,977.40, 154,526.49 and 60,990.72

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Solution

The fourth proportional to 111,977.40, 154,526.49 and 60,990.72 is: 84,165.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,977.40 : 154,526.49 = 60,990.72 : x
  2. Step 2: Convert to fraction form
    111,977.40/154,526.49 = 60,990.72/x
  3. Step 3: Cross multiply
    111,977.40x = 154,526.49 × 60,990.72
  4. Step 4: Simplify right side
    111,977.40x = 9,424,681,884.17
  5. Step 5: Solve for x
    x = 9,424,681,884.17/111,977.40
  6. Step 6: Final answer
    x = 84,165.93

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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.