Home / 117,038.99-161,513.72-66,062.45

Finding the Fourth Proportional to 117,038.99, 161,513.72 and 66,062.45

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Solution

The fourth proportional to 117,038.99, 161,513.72 and 66,062.45 is: 91,166.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,038.99 : 161,513.72 = 66,062.45 : x
  2. Step 2: Convert to fraction form
    117,038.99/161,513.72 = 66,062.45/x
  3. Step 3: Cross multiply
    117,038.99x = 161,513.72 × 66,062.45
  4. Step 4: Simplify right side
    117,038.99x = 10,669,992,051.81
  5. Step 5: Solve for x
    x = 10,669,992,051.81/117,038.99
  6. Step 6: Final answer
    x = 91,166.13

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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.