Home / 97,819.64-135,113.26-75,430.52

Finding the Fourth Proportional to 97,819.64, 135,113.26 and 75,430.52

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Solution

The fourth proportional to 97,819.64, 135,113.26 and 75,430.52 is: 104,188.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,819.64 : 135,113.26 = 75,430.52 : x
  2. Step 2: Convert to fraction form
    97,819.64/135,113.26 = 75,430.52/x
  3. Step 3: Cross multiply
    97,819.64x = 135,113.26 × 75,430.52
  4. Step 4: Simplify right side
    97,819.64x = 10,191,663,460.70
  5. Step 5: Solve for x
    x = 10,191,663,460.70/97,819.64
  6. Step 6: Final answer
    x = 104,188.31

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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.