Home / 119,555.51-164,985.36-65,839.38

Finding the Fourth Proportional to 119,555.51, 164,985.36 and 65,839.38

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Solution

The fourth proportional to 119,555.51, 164,985.36 and 65,839.38 is: 90,857.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,555.51 : 164,985.36 = 65,839.38 : x
  2. Step 2: Convert to fraction form
    119,555.51/164,985.36 = 65,839.38/x
  3. Step 3: Cross multiply
    119,555.51x = 164,985.36 × 65,839.38
  4. Step 4: Simplify right side
    119,555.51x = 10,862,532,945.88
  5. Step 5: Solve for x
    x = 10,862,532,945.88/119,555.51
  6. Step 6: Final answer
    x = 90,857.66

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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.