Home / 210,286.80-290,156.96-119,637.47

Finding the Fourth Proportional to 210,286.80, 290,156.96 and 119,637.47

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Solution

The fourth proportional to 210,286.80, 290,156.96 and 119,637.47 is: 165,077.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,286.80 : 290,156.96 = 119,637.47 : x
  2. Step 2: Convert to fraction form
    210,286.80/290,156.96 = 119,637.47/x
  3. Step 3: Cross multiply
    210,286.80x = 290,156.96 × 119,637.47
  4. Step 4: Simplify right side
    210,286.80x = 34,713,645,621.78
  5. Step 5: Solve for x
    x = 34,713,645,621.78/210,286.80
  6. Step 6: Final answer
    x = 165,077.63

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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.