Home / 119,193.12-164,417.75-71,418.80

Finding the Fourth Proportional to 119,193.12, 164,417.75 and 71,418.80

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Solution

The fourth proportional to 119,193.12, 164,417.75 and 71,418.80 is: 98,516.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,193.12 : 164,417.75 = 71,418.80 : x
  2. Step 2: Convert to fraction form
    119,193.12/164,417.75 = 71,418.80/x
  3. Step 3: Cross multiply
    119,193.12x = 164,417.75 × 71,418.80
  4. Step 4: Simplify right side
    119,193.12x = 11,742,517,224.52
  5. Step 5: Solve for x
    x = 11,742,517,224.52/119,193.12
  6. Step 6: Final answer
    x = 98,516.74

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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.