Home / 210,943.12-291,101.24-119,081.72

Finding the Fourth Proportional to 210,943.12, 291,101.24 and 119,081.72

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Solution

The fourth proportional to 210,943.12, 291,101.24 and 119,081.72 is: 164,332.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,943.12 : 291,101.24 = 119,081.72 : x
  2. Step 2: Convert to fraction form
    210,943.12/291,101.24 = 119,081.72/x
  3. Step 3: Cross multiply
    210,943.12x = 291,101.24 × 119,081.72
  4. Step 4: Simplify right side
    210,943.12x = 34,664,836,353.33
  5. Step 5: Solve for x
    x = 34,664,836,353.33/210,943.12
  6. Step 6: Final answer
    x = 164,332.62

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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.