Home / 211,029.52-291,248.48-120,364.72

Finding the Fourth Proportional to 211,029.52, 291,248.48 and 120,364.72

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Solution

The fourth proportional to 211,029.52, 291,248.48 and 120,364.72 is: 166,119.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,029.52 : 291,248.48 = 120,364.72 : x
  2. Step 2: Convert to fraction form
    211,029.52/291,248.48 = 120,364.72/x
  3. Step 3: Cross multiply
    211,029.52x = 291,248.48 × 120,364.72
  4. Step 4: Simplify right side
    211,029.52x = 35,056,041,745.63
  5. Step 5: Solve for x
    x = 35,056,041,745.63/211,029.52
  6. Step 6: Final answer
    x = 166,119.14

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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.