Home / 118,418.10-177,655.07-38,455.80

Finding the Fourth Proportional to 118,418.10, 177,655.07 and 38,455.80

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Solution

The fourth proportional to 118,418.10, 177,655.07 and 38,455.80 is: 57,692.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,418.10 : 177,655.07 = 38,455.80 : x
  2. Step 2: Convert to fraction form
    118,418.10/177,655.07 = 38,455.80/x
  3. Step 3: Cross multiply
    118,418.10x = 177,655.07 × 38,455.80
  4. Step 4: Simplify right side
    118,418.10x = 6,831,867,840.91
  5. Step 5: Solve for x
    x = 6,831,867,840.91/118,418.10
  6. Step 6: Final answer
    x = 57,692.77

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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.