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Finding the Fourth Proportional to 109,303.68, 150,849.84 and 63,978.92

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Solution

The fourth proportional to 109,303.68, 150,849.84 and 63,978.92 is: 88,297.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,303.68 : 150,849.84 = 63,978.92 : x
  2. Step 2: Convert to fraction form
    109,303.68/150,849.84 = 63,978.92/x
  3. Step 3: Cross multiply
    109,303.68x = 150,849.84 × 63,978.92
  4. Step 4: Simplify right side
    109,303.68x = 9,651,209,845.37
  5. Step 5: Solve for x
    x = 9,651,209,845.37/109,303.68
  6. Step 6: Final answer
    x = 88,297.21

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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.