Home / 211,113.73-291,264.55-120,404.46

Finding the Fourth Proportional to 211,113.73, 291,264.55 and 120,404.46

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Solution

The fourth proportional to 211,113.73, 291,264.55 and 120,404.46 is: 166,116.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,113.73 : 291,264.55 = 120,404.46 : x
  2. Step 2: Convert to fraction form
    211,113.73/291,264.55 = 120,404.46/x
  3. Step 3: Cross multiply
    211,113.73x = 291,264.55 × 120,404.46
  4. Step 4: Simplify right side
    211,113.73x = 35,069,550,859.89
  5. Step 5: Solve for x
    x = 35,069,550,859.89/211,113.73
  6. Step 6: Final answer
    x = 166,116.86

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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.