Home / 109,282.80-150,821.28-66,284.76

Finding the Fourth Proportional to 109,282.80, 150,821.28 and 66,284.76

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Solution

The fourth proportional to 109,282.80, 150,821.28 and 66,284.76 is: 91,479.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,282.80 : 150,821.28 = 66,284.76 : x
  2. Step 2: Convert to fraction form
    109,282.80/150,821.28 = 66,284.76/x
  3. Step 3: Cross multiply
    109,282.80x = 150,821.28 × 66,284.76
  4. Step 4: Simplify right side
    109,282.80x = 9,997,152,347.69
  5. Step 5: Solve for x
    x = 9,997,152,347.69/109,282.80
  6. Step 6: Final answer
    x = 91,479.65

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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.