Home / 143,939.24-198,533.30-124,784.77

Finding the Fourth Proportional to 143,939.24, 198,533.30 and 124,784.77

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Solution

The fourth proportional to 143,939.24, 198,533.30 and 124,784.77 is: 172,113.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,939.24 : 198,533.30 = 124,784.77 : x
  2. Step 2: Convert to fraction form
    143,939.24/198,533.30 = 124,784.77/x
  3. Step 3: Cross multiply
    143,939.24x = 198,533.30 × 124,784.77
  4. Step 4: Simplify right side
    143,939.24x = 24,773,931,185.17
  5. Step 5: Solve for x
    x = 24,773,931,185.17/143,939.24
  6. Step 6: Final answer
    x = 172,113.81

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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.