Home / 116,988.96-161,444.79-66,012.51

Finding the Fourth Proportional to 116,988.96, 161,444.79 and 66,012.51

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Solution

The fourth proportional to 116,988.96, 161,444.79 and 66,012.51 is: 91,097.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,988.96 : 161,444.79 = 66,012.51 : x
  2. Step 2: Convert to fraction form
    116,988.96/161,444.79 = 66,012.51/x
  3. Step 3: Cross multiply
    116,988.96x = 161,444.79 × 66,012.51
  4. Step 4: Simplify right side
    116,988.96x = 10,657,375,814.32
  5. Step 5: Solve for x
    x = 10,657,375,814.32/116,988.96
  6. Step 6: Final answer
    x = 91,097.28

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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.