Home / 121,020.17-167,011.94-66,574.73

Finding the Fourth Proportional to 121,020.17, 167,011.94 and 66,574.73

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Solution

The fourth proportional to 121,020.17, 167,011.94 and 66,574.73 is: 91,875.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,020.17 : 167,011.94 = 66,574.73 : x
  2. Step 2: Convert to fraction form
    121,020.17/167,011.94 = 66,574.73/x
  3. Step 3: Cross multiply
    121,020.17x = 167,011.94 × 66,574.73
  4. Step 4: Simplify right side
    121,020.17x = 11,118,775,396.24
  5. Step 5: Solve for x
    x = 11,118,775,396.24/121,020.17
  6. Step 6: Final answer
    x = 91,875.39

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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.