Home / 108,075.28-149,143.30-62,764.40

Finding the Fourth Proportional to 108,075.28, 149,143.30 and 62,764.40

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Solution

The fourth proportional to 108,075.28, 149,143.30 and 62,764.40 is: 86,614.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,075.28 : 149,143.30 = 62,764.40 : x
  2. Step 2: Convert to fraction form
    108,075.28/149,143.30 = 62,764.40/x
  3. Step 3: Cross multiply
    108,075.28x = 149,143.30 × 62,764.40
  4. Step 4: Simplify right side
    108,075.28x = 9,360,889,738.52
  5. Step 5: Solve for x
    x = 9,360,889,738.52/108,075.28
  6. Step 6: Final answer
    x = 86,614.53

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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.