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Finding the Fourth Proportional to 122,915.80, 184,416.90 and 118,595.80

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Solution

The fourth proportional to 122,915.80, 184,416.90 and 118,595.80 is: 177,935.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,915.80 : 184,416.90 = 118,595.80 : x
  2. Step 2: Convert to fraction form
    122,915.80/184,416.90 = 118,595.80/x
  3. Step 3: Cross multiply
    122,915.80x = 184,416.90 × 118,595.80
  4. Step 4: Simplify right side
    122,915.80x = 21,871,069,789.02
  5. Step 5: Solve for x
    x = 21,871,069,789.02/122,915.80
  6. Step 6: Final answer
    x = 177,935.38

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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.