Home / 146,385.53-202,012.08-79,317.53

Finding the Fourth Proportional to 146,385.53, 202,012.08 and 79,317.53

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Solution

The fourth proportional to 146,385.53, 202,012.08 and 79,317.53 is: 109,458.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,385.53 : 202,012.08 = 79,317.53 : x
  2. Step 2: Convert to fraction form
    146,385.53/202,012.08 = 79,317.53/x
  3. Step 3: Cross multiply
    146,385.53x = 202,012.08 × 79,317.53
  4. Step 4: Simplify right side
    146,385.53x = 16,023,099,215.76
  5. Step 5: Solve for x
    x = 16,023,099,215.76/146,385.53
  6. Step 6: Final answer
    x = 109,458.22

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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.