Home / 143,033.25-197,248.59-85,663.38

Finding the Fourth Proportional to 143,033.25, 197,248.59 and 85,663.38

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Solution

The fourth proportional to 143,033.25, 197,248.59 and 85,663.38 is: 118,133.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,033.25 : 197,248.59 = 85,663.38 : x
  2. Step 2: Convert to fraction form
    143,033.25/197,248.59 = 85,663.38/x
  3. Step 3: Cross multiply
    143,033.25x = 197,248.59 × 85,663.38
  4. Step 4: Simplify right side
    143,033.25x = 16,896,980,919.63
  5. Step 5: Solve for x
    x = 16,896,980,919.63/143,033.25
  6. Step 6: Final answer
    x = 118,133.24

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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.