Home / 211,590.96-291,995.52-120,948.88

Finding the Fourth Proportional to 211,590.96, 291,995.52 and 120,948.88

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Solution

The fourth proportional to 211,590.96, 291,995.52 and 120,948.88 is: 166,909.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,590.96 : 291,995.52 = 120,948.88 : x
  2. Step 2: Convert to fraction form
    211,590.96/291,995.52 = 120,948.88/x
  3. Step 3: Cross multiply
    211,590.96x = 291,995.52 × 120,948.88
  4. Step 4: Simplify right side
    211,590.96x = 35,316,531,109.02
  5. Step 5: Solve for x
    x = 35,316,531,109.02/211,590.96
  6. Step 6: Final answer
    x = 166,909.45

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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.