Home / 100,333.86-138,433.18-62,075.04

Finding the Fourth Proportional to 100,333.86, 138,433.18 and 62,075.04

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Solution

The fourth proportional to 100,333.86, 138,433.18 and 62,075.04 is: 85,646.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,333.86 : 138,433.18 = 62,075.04 : x
  2. Step 2: Convert to fraction form
    100,333.86/138,433.18 = 62,075.04/x
  3. Step 3: Cross multiply
    100,333.86x = 138,433.18 × 62,075.04
  4. Step 4: Simplify right side
    100,333.86x = 8,593,245,185.83
  5. Step 5: Solve for x
    x = 8,593,245,185.83/100,333.86
  6. Step 6: Final answer
    x = 85,646.51

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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.