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Finding the Fourth Proportional to 162,340.51, 224,029.25 and 90,720.51

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Solution

The fourth proportional to 162,340.51, 224,029.25 and 90,720.51 is: 125,193.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,340.51 : 224,029.25 = 90,720.51 : x
  2. Step 2: Convert to fraction form
    162,340.51/224,029.25 = 90,720.51/x
  3. Step 3: Cross multiply
    162,340.51x = 224,029.25 × 90,720.51
  4. Step 4: Simplify right side
    162,340.51x = 20,324,047,361.32
  5. Step 5: Solve for x
    x = 20,324,047,361.32/162,340.51
  6. Step 6: Final answer
    x = 125,193.94

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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.