Home / 211,570.48-291,967.26-120,928.39

Finding the Fourth Proportional to 211,570.48, 291,967.26 and 120,928.39

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Solution

The fourth proportional to 211,570.48, 291,967.26 and 120,928.39 is: 166,881.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,570.48 : 291,967.26 = 120,928.39 : x
  2. Step 2: Convert to fraction form
    211,570.48/291,967.26 = 120,928.39/x
  3. Step 3: Cross multiply
    211,570.48x = 291,967.26 × 120,928.39
  4. Step 4: Simplify right side
    211,570.48x = 35,307,130,595.99
  5. Step 5: Solve for x
    x = 35,307,130,595.99/211,570.48
  6. Step 6: Final answer
    x = 166,881.18

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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.