Home / 136,917.64-205,396.05-42,155.84

Finding the Fourth Proportional to 136,917.64, 205,396.05 and 42,155.84

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Solution

The fourth proportional to 136,917.64, 205,396.05 and 42,155.84 is: 63,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,917.64 : 205,396.05 = 42,155.84 : x
  2. Step 2: Convert to fraction form
    136,917.64/205,396.05 = 42,155.84/x
  3. Step 3: Cross multiply
    136,917.64x = 205,396.05 × 42,155.84
  4. Step 4: Simplify right side
    136,917.64x = 8,658,643,692.01
  5. Step 5: Solve for x
    x = 8,658,643,692.01/136,917.64
  6. Step 6: Final answer
    x = 63,239.80

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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.