Home / 123,784.20-185,457.60-101,476.80

Finding the Fourth Proportional to 123,784.20, 185,457.60 and 101,476.80

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Solution

The fourth proportional to 123,784.20, 185,457.60 and 101,476.80 is: 152,035.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,784.20 : 185,457.60 = 101,476.80 : x
  2. Step 2: Convert to fraction form
    123,784.20/185,457.60 = 101,476.80/x
  3. Step 3: Cross multiply
    123,784.20x = 185,457.60 × 101,476.80
  4. Step 4: Simplify right side
    123,784.20x = 18,819,643,783.68
  5. Step 5: Solve for x
    x = 18,819,643,783.68/123,784.20
  6. Step 6: Final answer
    x = 152,035.91

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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.