Home / 100,557.28-150,836.06-42,839.65

Finding the Fourth Proportional to 100,557.28, 150,836.06 and 42,839.65

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Solution

The fourth proportional to 100,557.28, 150,836.06 and 42,839.65 is: 64,259.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,557.28 : 150,836.06 = 42,839.65 : x
  2. Step 2: Convert to fraction form
    100,557.28/150,836.06 = 42,839.65/x
  3. Step 3: Cross multiply
    100,557.28x = 150,836.06 × 42,839.65
  4. Step 4: Simplify right side
    100,557.28x = 6,461,764,072.45
  5. Step 5: Solve for x
    x = 6,461,764,072.45/100,557.28
  6. Step 6: Final answer
    x = 64,259.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.