Home / 162,732.36-224,560-91,111.72

Finding the Fourth Proportional to 162,732.36, 224,560 and 91,111.72

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Solution

The fourth proportional to 162,732.36, 224,560 and 91,111.72 is: 125,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,732.36 : 224,560 = 91,111.72 : x
  2. Step 2: Convert to fraction form
    162,732.36/224,560 = 91,111.72/x
  3. Step 3: Cross multiply
    162,732.36x = 224,560 × 91,111.72
  4. Step 4: Simplify right side
    162,732.36x = 20,460,047,843.20
  5. Step 5: Solve for x
    x = 20,460,047,843.20/162,732.36
  6. Step 6: Final answer
    x = 125,728.21

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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.