Home / 117,013.71-161,478.44-63,298.60

Finding the Fourth Proportional to 117,013.71, 161,478.44 and 63,298.60

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Solution

The fourth proportional to 117,013.71, 161,478.44 and 63,298.60 is: 87,351.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,013.71 : 161,478.44 = 63,298.60 : x
  2. Step 2: Convert to fraction form
    117,013.71/161,478.44 = 63,298.60/x
  3. Step 3: Cross multiply
    117,013.71x = 161,478.44 × 63,298.60
  4. Step 4: Simplify right side
    117,013.71x = 10,221,359,055.42
  5. Step 5: Solve for x
    x = 10,221,359,055.42/117,013.71
  6. Step 6: Final answer
    x = 87,351.80

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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.