Home / 121,159.11-181,677.63-70,574.43

Finding the Fourth Proportional to 121,159.11, 181,677.63 and 70,574.43

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Solution

The fourth proportional to 121,159.11, 181,677.63 and 70,574.43 is: 105,826.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,159.11 : 181,677.63 = 70,574.43 : x
  2. Step 2: Convert to fraction form
    121,159.11/181,677.63 = 70,574.43/x
  3. Step 3: Cross multiply
    121,159.11x = 181,677.63 × 70,574.43
  4. Step 4: Simplify right side
    121,159.11x = 12,821,795,181.00
  5. Step 5: Solve for x
    x = 12,821,795,181.00/121,159.11
  6. Step 6: Final answer
    x = 105,826.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.