Home / 211,757.40-292,141.87-121,064.64

Finding the Fourth Proportional to 211,757.40, 292,141.87 and 121,064.64

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Solution

The fourth proportional to 211,757.40, 292,141.87 and 121,064.64 is: 167,021.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,757.40 : 292,141.87 = 121,064.64 : x
  2. Step 2: Convert to fraction form
    211,757.40/292,141.87 = 121,064.64/x
  3. Step 3: Cross multiply
    211,757.40x = 292,141.87 × 121,064.64
  4. Step 4: Simplify right side
    211,757.40x = 35,368,050,017.82
  5. Step 5: Solve for x
    x = 35,368,050,017.82/211,757.40
  6. Step 6: Final answer
    x = 167,021.55

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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.