Home / 130,615.60-196,010.78-47,509.60

Finding the Fourth Proportional to 130,615.60, 196,010.78 and 47,509.60

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Solution

The fourth proportional to 130,615.60, 196,010.78 and 47,509.60 is: 71,296.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,615.60 : 196,010.78 = 47,509.60 : x
  2. Step 2: Convert to fraction form
    130,615.60/196,010.78 = 47,509.60/x
  3. Step 3: Cross multiply
    130,615.60x = 196,010.78 × 47,509.60
  4. Step 4: Simplify right side
    130,615.60x = 9,312,393,753.49
  5. Step 5: Solve for x
    x = 9,312,393,753.49/130,615.60
  6. Step 6: Final answer
    x = 71,296.18

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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.