Home / 210,611.12-290,642.92-119,967.05

Finding the Fourth Proportional to 210,611.12, 290,642.92 and 119,967.05

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Solution

The fourth proportional to 210,611.12, 290,642.92 and 119,967.05 is: 165,554.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,611.12 : 290,642.92 = 119,967.05 : x
  2. Step 2: Convert to fraction form
    210,611.12/290,642.92 = 119,967.05/x
  3. Step 3: Cross multiply
    210,611.12x = 290,642.92 × 119,967.05
  4. Step 4: Simplify right side
    210,611.12x = 34,867,573,715.79
  5. Step 5: Solve for x
    x = 34,867,573,715.79/210,611.12
  6. Step 6: Final answer
    x = 165,554.29

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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.