Home / 103,946.77-143,468.79-65,682.02

Finding the Fourth Proportional to 103,946.77, 143,468.79 and 65,682.02

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Solution

The fourth proportional to 103,946.77, 143,468.79 and 65,682.02 is: 90,655.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,946.77 : 143,468.79 = 65,682.02 : x
  2. Step 2: Convert to fraction form
    103,946.77/143,468.79 = 65,682.02/x
  3. Step 3: Cross multiply
    103,946.77x = 143,468.79 × 65,682.02
  4. Step 4: Simplify right side
    103,946.77x = 9,423,319,934.16
  5. Step 5: Solve for x
    x = 9,423,319,934.16/103,946.77
  6. Step 6: Final answer
    x = 90,655.25

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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.