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Finding the Fourth Proportional to 152,090.64, 209,881.44 and 88,450.56

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Solution

The fourth proportional to 152,090.64, 209,881.44 and 88,450.56 is: 122,059.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,090.64 : 209,881.44 = 88,450.56 : x
  2. Step 2: Convert to fraction form
    152,090.64/209,881.44 = 88,450.56/x
  3. Step 3: Cross multiply
    152,090.64x = 209,881.44 × 88,450.56
  4. Step 4: Simplify right side
    152,090.64x = 18,564,130,901.61
  5. Step 5: Solve for x
    x = 18,564,130,901.61/152,090.64
  6. Step 6: Final answer
    x = 122,059.65

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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.