Home / 148,840.70-223,261.05-85,855.10

Finding the Fourth Proportional to 148,840.70, 223,261.05 and 85,855.10

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Solution

The fourth proportional to 148,840.70, 223,261.05 and 85,855.10 is: 128,782.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,840.70 : 223,261.05 = 85,855.10 : x
  2. Step 2: Convert to fraction form
    148,840.70/223,261.05 = 85,855.10/x
  3. Step 3: Cross multiply
    148,840.70x = 223,261.05 × 85,855.10
  4. Step 4: Simplify right side
    148,840.70x = 19,168,099,773.86
  5. Step 5: Solve for x
    x = 19,168,099,773.86/148,840.70
  6. Step 6: Final answer
    x = 128,782.65

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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.