Home / 130,909.41-180,654.98-71,293.41

Finding the Fourth Proportional to 130,909.41, 180,654.98 and 71,293.41

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Solution

The fourth proportional to 130,909.41, 180,654.98 and 71,293.41 is: 98,384.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,909.41 : 180,654.98 = 71,293.41 : x
  2. Step 2: Convert to fraction form
    130,909.41/180,654.98 = 71,293.41/x
  3. Step 3: Cross multiply
    130,909.41x = 180,654.98 × 71,293.41
  4. Step 4: Simplify right side
    130,909.41x = 12,879,509,735.92
  5. Step 5: Solve for x
    x = 12,879,509,735.92/130,909.41
  6. Step 6: Final answer
    x = 98,384.90

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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.