Home / 146,518.08-202,131-85,981.92

Finding the Fourth Proportional to 146,518.08, 202,131 and 85,981.92

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Solution

The fourth proportional to 146,518.08, 202,131 and 85,981.92 is: 118,617.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,518.08 : 202,131 = 85,981.92 : x
  2. Step 2: Convert to fraction form
    146,518.08/202,131 = 85,981.92/x
  3. Step 3: Cross multiply
    146,518.08x = 202,131 × 85,981.92
  4. Step 4: Simplify right side
    146,518.08x = 17,379,611,471.52
  5. Step 5: Solve for x
    x = 17,379,611,471.52/146,518.08
  6. Step 6: Final answer
    x = 118,617.52

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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.