Home / 111,301.47-166,675.26-77,864.98

Finding the Fourth Proportional to 111,301.47, 166,675.26 and 77,864.98

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Solution

The fourth proportional to 111,301.47, 166,675.26 and 77,864.98 is: 116,603.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,301.47 : 166,675.26 = 77,864.98 : x
  2. Step 2: Convert to fraction form
    111,301.47/166,675.26 = 77,864.98/x
  3. Step 3: Cross multiply
    111,301.47x = 166,675.26 × 77,864.98
  4. Step 4: Simplify right side
    111,301.47x = 12,978,165,661.70
  5. Step 5: Solve for x
    x = 12,978,165,661.70/111,301.47
  6. Step 6: Final answer
    x = 116,603.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.