Home / 111,129.12-166,641.84-64,395.36

Finding the Fourth Proportional to 111,129.12, 166,641.84 and 64,395.36

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Solution

The fourth proportional to 111,129.12, 166,641.84 and 64,395.36 is: 96,563.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,129.12 : 166,641.84 = 64,395.36 : x
  2. Step 2: Convert to fraction form
    111,129.12/166,641.84 = 64,395.36/x
  3. Step 3: Cross multiply
    111,129.12x = 166,641.84 × 64,395.36
  4. Step 4: Simplify right side
    111,129.12x = 10,730,961,277.86
  5. Step 5: Solve for x
    x = 10,730,961,277.86/111,129.12
  6. Step 6: Final answer
    x = 96,563.00

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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.