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Finding the Fourth Proportional to 100,006.56, 137,883.60 and 64,133.28

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Solution

The fourth proportional to 100,006.56, 137,883.60 and 64,133.28 is: 88,423.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,006.56 : 137,883.60 = 64,133.28 : x
  2. Step 2: Convert to fraction form
    100,006.56/137,883.60 = 64,133.28/x
  3. Step 3: Cross multiply
    100,006.56x = 137,883.60 × 64,133.28
  4. Step 4: Simplify right side
    100,006.56x = 8,842,927,526.21
  5. Step 5: Solve for x
    x = 8,842,927,526.21/100,006.56
  6. Step 6: Final answer
    x = 88,423.47

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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.