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Finding the Fourth Proportional to 129,973.60, 194,499.60 and 88,501.60

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Solution

The fourth proportional to 129,973.60, 194,499.60 and 88,501.60 is: 132,438.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,973.60 : 194,499.60 = 88,501.60 : x
  2. Step 2: Convert to fraction form
    129,973.60/194,499.60 = 88,501.60/x
  3. Step 3: Cross multiply
    129,973.60x = 194,499.60 × 88,501.60
  4. Step 4: Simplify right side
    129,973.60x = 17,213,525,799.36
  5. Step 5: Solve for x
    x = 17,213,525,799.36/129,973.60
  6. Step 6: Final answer
    x = 132,438.63

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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.