Home / 188,588.20-260,248.80-103,705.06

Finding the Fourth Proportional to 188,588.20, 260,248.80 and 103,705.06

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Solution

The fourth proportional to 188,588.20, 260,248.80 and 103,705.06 is: 143,111.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,588.20 : 260,248.80 = 103,705.06 : x
  2. Step 2: Convert to fraction form
    188,588.20/260,248.80 = 103,705.06/x
  3. Step 3: Cross multiply
    188,588.20x = 260,248.80 × 103,705.06
  4. Step 4: Simplify right side
    188,588.20x = 26,989,117,418.93
  5. Step 5: Solve for x
    x = 26,989,117,418.93/188,588.20
  6. Step 6: Final answer
    x = 143,111.38

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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.