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Finding the Fourth Proportional to 134,889.80, 202,334.70 and 64,752.20

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Solution

The fourth proportional to 134,889.80, 202,334.70 and 64,752.20 is: 97,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,889.80 : 202,334.70 = 64,752.20 : x
  2. Step 2: Convert to fraction form
    134,889.80/202,334.70 = 64,752.20/x
  3. Step 3: Cross multiply
    134,889.80x = 202,334.70 × 64,752.20
  4. Step 4: Simplify right side
    134,889.80x = 13,101,616,961.34
  5. Step 5: Solve for x
    x = 13,101,616,961.34/134,889.80
  6. Step 6: Final answer
    x = 97,128.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.