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Finding the Fourth Proportional to 101,262, 139,740.98 and 55,943.10

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Solution

The fourth proportional to 101,262, 139,740.98 and 55,943.10 is: 77,201.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,262 : 139,740.98 = 55,943.10 : x
  2. Step 2: Convert to fraction form
    101,262/139,740.98 = 55,943.10/x
  3. Step 3: Cross multiply
    101,262x = 139,740.98 × 55,943.10
  4. Step 4: Simplify right side
    101,262x = 7,817,543,618.24
  5. Step 5: Solve for x
    x = 7,817,543,618.24/101,262
  6. Step 6: Final answer
    x = 77,201.16

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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.