Home / 210,610.12-290,641.54-119,966.05

Finding the Fourth Proportional to 210,610.12, 290,641.54 and 119,966.05

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Solution

The fourth proportional to 210,610.12, 290,641.54 and 119,966.05 is: 165,552.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,610.12 : 290,641.54 = 119,966.05 : x
  2. Step 2: Convert to fraction form
    210,610.12/290,641.54 = 119,966.05/x
  3. Step 3: Cross multiply
    210,610.12x = 290,641.54 × 119,966.05
  4. Step 4: Simplify right side
    210,610.12x = 34,867,117,519.72
  5. Step 5: Solve for x
    x = 34,867,117,519.72/210,610.12
  6. Step 6: Final answer
    x = 165,552.91

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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.