Home / 117,141.63-161,649.05-68,737.04

Finding the Fourth Proportional to 117,141.63, 161,649.05 and 68,737.04

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Solution

The fourth proportional to 117,141.63, 161,649.05 and 68,737.04 is: 94,853.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,141.63 : 161,649.05 = 68,737.04 : x
  2. Step 2: Convert to fraction form
    117,141.63/161,649.05 = 68,737.04/x
  3. Step 3: Cross multiply
    117,141.63x = 161,649.05 × 68,737.04
  4. Step 4: Simplify right side
    117,141.63x = 11,111,277,215.81
  5. Step 5: Solve for x
    x = 11,111,277,215.81/117,141.63
  6. Step 6: Final answer
    x = 94,853.36

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1.5x scale

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.