Home / 103,573.20-142,778.88-73,265.16

Finding the Fourth Proportional to 103,573.20, 142,778.88 and 73,265.16

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Solution

The fourth proportional to 103,573.20, 142,778.88 and 73,265.16 is: 100,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,573.20 : 142,778.88 = 73,265.16 : x
  2. Step 2: Convert to fraction form
    103,573.20/142,778.88 = 73,265.16/x
  3. Step 3: Cross multiply
    103,573.20x = 142,778.88 × 73,265.16
  4. Step 4: Simplify right side
    103,573.20x = 10,460,717,487.82
  5. Step 5: Solve for x
    x = 10,460,717,487.82/103,573.20
  6. Step 6: Final answer
    x = 100,998.30

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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.