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Finding the Fourth Proportional to 101,075.44, 139,528.94 and 65,282.91

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Solution

The fourth proportional to 101,075.44, 139,528.94 and 65,282.91 is: 90,119.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,075.44 : 139,528.94 = 65,282.91 : x
  2. Step 2: Convert to fraction form
    101,075.44/139,528.94 = 65,282.91/x
  3. Step 3: Cross multiply
    101,075.44x = 139,528.94 × 65,282.91
  4. Step 4: Simplify right side
    101,075.44x = 9,108,854,749.98
  5. Step 5: Solve for x
    x = 9,108,854,749.98/101,075.44
  6. Step 6: Final answer
    x = 90,119.37

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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.