Home / 150,840.48-208,154.16-83,776.80

Finding the Fourth Proportional to 150,840.48, 208,154.16 and 83,776.80

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Solution

The fourth proportional to 150,840.48, 208,154.16 and 83,776.80 is: 115,608.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,840.48 : 208,154.16 = 83,776.80 : x
  2. Step 2: Convert to fraction form
    150,840.48/208,154.16 = 83,776.80/x
  3. Step 3: Cross multiply
    150,840.48x = 208,154.16 × 83,776.80
  4. Step 4: Simplify right side
    150,840.48x = 17,438,489,431.49
  5. Step 5: Solve for x
    x = 17,438,489,431.49/150,840.48
  6. Step 6: Final answer
    x = 115,608.82

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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.