Home / 103,946.27-143,468.10-65,681.52

Finding the Fourth Proportional to 103,946.27, 143,468.10 and 65,681.52

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Solution

The fourth proportional to 103,946.27, 143,468.10 and 65,681.52 is: 90,654.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,946.27 : 143,468.10 = 65,681.52 : x
  2. Step 2: Convert to fraction form
    103,946.27/143,468.10 = 65,681.52/x
  3. Step 3: Cross multiply
    103,946.27x = 143,468.10 × 65,681.52
  4. Step 4: Simplify right side
    103,946.27x = 9,423,202,879.51
  5. Step 5: Solve for x
    x = 9,423,202,879.51/103,946.27
  6. Step 6: Final answer
    x = 90,654.56

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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.