Home / 144,700.38-199,686.36-81,038.64

Finding the Fourth Proportional to 144,700.38, 199,686.36 and 81,038.64

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Solution

The fourth proportional to 144,700.38, 199,686.36 and 81,038.64 is: 111,833.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,700.38 : 199,686.36 = 81,038.64 : x
  2. Step 2: Convert to fraction form
    144,700.38/199,686.36 = 81,038.64/x
  3. Step 3: Cross multiply
    144,700.38x = 199,686.36 × 81,038.64
  4. Step 4: Simplify right side
    144,700.38x = 16,182,311,040.95
  5. Step 5: Solve for x
    x = 16,182,311,040.95/144,700.38
  6. Step 6: Final answer
    x = 111,833.23

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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.