Home / 116,985.40-161,439.88-66,008.93

Finding the Fourth Proportional to 116,985.40, 161,439.88 and 66,008.93

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Solution

The fourth proportional to 116,985.40, 161,439.88 and 66,008.93 is: 91,092.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,985.40 : 161,439.88 = 66,008.93 : x
  2. Step 2: Convert to fraction form
    116,985.40/161,439.88 = 66,008.93/x
  3. Step 3: Cross multiply
    116,985.40x = 161,439.88 × 66,008.93
  4. Step 4: Simplify right side
    116,985.40x = 10,656,473,797.77
  5. Step 5: Solve for x
    x = 10,656,473,797.77/116,985.40
  6. Step 6: Final answer
    x = 91,092.34

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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.