Home / 119,045.09-164,288.05-65,329.54

Finding the Fourth Proportional to 119,045.09, 164,288.05 and 65,329.54

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Solution

The fourth proportional to 119,045.09, 164,288.05 and 65,329.54 is: 90,157.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,045.09 : 164,288.05 = 65,329.54 : x
  2. Step 2: Convert to fraction form
    119,045.09/164,288.05 = 65,329.54/x
  3. Step 3: Cross multiply
    119,045.09x = 164,288.05 × 65,329.54
  4. Step 4: Simplify right side
    119,045.09x = 10,732,862,159.95
  5. Step 5: Solve for x
    x = 10,732,862,159.95/119,045.09
  6. Step 6: Final answer
    x = 90,157.96

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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.