Home / 117,569.89-162,245.01-66,581.20

Finding the Fourth Proportional to 117,569.89, 162,245.01 and 66,581.20

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Solution

The fourth proportional to 117,569.89, 162,245.01 and 66,581.20 is: 91,881.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,569.89 : 162,245.01 = 66,581.20 : x
  2. Step 2: Convert to fraction form
    117,569.89/162,245.01 = 66,581.20/x
  3. Step 3: Cross multiply
    117,569.89x = 162,245.01 × 66,581.20
  4. Step 4: Simplify right side
    117,569.89x = 10,802,467,459.81
  5. Step 5: Solve for x
    x = 10,802,467,459.81/117,569.89
  6. Step 6: Final answer
    x = 91,881.24

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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.