Home / 117,013.48-161,478.63-66,037.07

Finding the Fourth Proportional to 117,013.48, 161,478.63 and 66,037.07

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Solution

The fourth proportional to 117,013.48, 161,478.63 and 66,037.07 is: 91,131.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,013.48 : 161,478.63 = 66,037.07 : x
  2. Step 2: Convert to fraction form
    117,013.48/161,478.63 = 66,037.07/x
  3. Step 3: Cross multiply
    117,013.48x = 161,478.63 × 66,037.07
  4. Step 4: Simplify right side
    117,013.48x = 10,663,575,996.51
  5. Step 5: Solve for x
    x = 10,663,575,996.51/117,013.48
  6. Step 6: Final answer
    x = 91,131.18

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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.