Home / 211,570.66-291,967.52-120,928.58

Finding the Fourth Proportional to 211,570.66, 291,967.52 and 120,928.58

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Solution

The fourth proportional to 211,570.66, 291,967.52 and 120,928.58 is: 166,881.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,570.66 : 291,967.52 = 120,928.58 : x
  2. Step 2: Convert to fraction form
    211,570.66/291,967.52 = 120,928.58/x
  3. Step 3: Cross multiply
    211,570.66x = 291,967.52 × 120,928.58
  4. Step 4: Simplify right side
    211,570.66x = 35,307,216,630.12
  5. Step 5: Solve for x
    x = 35,307,216,630.12/211,570.66
  6. Step 6: Final answer
    x = 166,881.44

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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.