Home / 130,983.20-196,503.60-42,221.60

Finding the Fourth Proportional to 130,983.20, 196,503.60 and 42,221.60

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Solution

The fourth proportional to 130,983.20, 196,503.60 and 42,221.60 is: 63,341.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,983.20 : 196,503.60 = 42,221.60 : x
  2. Step 2: Convert to fraction form
    130,983.20/196,503.60 = 42,221.60/x
  3. Step 3: Cross multiply
    130,983.20x = 196,503.60 × 42,221.60
  4. Step 4: Simplify right side
    130,983.20x = 8,296,696,397.76
  5. Step 5: Solve for x
    x = 8,296,696,397.76/130,983.20
  6. Step 6: Final answer
    x = 63,341.68

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1.5x scale

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.