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Finding the Fourth Proportional to 101,035.42, 139,437.18 and 55,722.26

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Solution

The fourth proportional to 101,035.42, 139,437.18 and 55,722.26 is: 76,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,035.42 : 139,437.18 = 55,722.26 : x
  2. Step 2: Convert to fraction form
    101,035.42/139,437.18 = 55,722.26/x
  3. Step 3: Cross multiply
    101,035.42x = 139,437.18 × 55,722.26
  4. Step 4: Simplify right side
    101,035.42x = 7,769,755,146.22
  5. Step 5: Solve for x
    x = 7,769,755,146.22/101,035.42
  6. Step 6: Final answer
    x = 76,901.30

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1.5x scale

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.