Home / 210,157.20-290,016.84-134,705.64

Finding the Fourth Proportional to 210,157.20, 290,016.84 and 134,705.64

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Solution

The fourth proportional to 210,157.20, 290,016.84 and 134,705.64 is: 185,893.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,157.20 : 290,016.84 = 134,705.64 : x
  2. Step 2: Convert to fraction form
    210,157.20/290,016.84 = 134,705.64/x
  3. Step 3: Cross multiply
    210,157.20x = 290,016.84 × 134,705.64
  4. Step 4: Simplify right side
    210,157.20x = 39,066,904,042.98
  5. Step 5: Solve for x
    x = 39,066,904,042.98/210,157.20
  6. Step 6: Final answer
    x = 185,893.72

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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.