Home / 130,613.60-196,007.78-47,507.60

Finding the Fourth Proportional to 130,613.60, 196,007.78 and 47,507.60

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Solution

The fourth proportional to 130,613.60, 196,007.78 and 47,507.60 is: 71,293.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,613.60 : 196,007.78 = 47,507.60 : x
  2. Step 2: Convert to fraction form
    130,613.60/196,007.78 = 47,507.60/x
  3. Step 3: Cross multiply
    130,613.60x = 196,007.78 × 47,507.60
  4. Step 4: Simplify right side
    130,613.60x = 9,311,859,209.13
  5. Step 5: Solve for x
    x = 9,311,859,209.13/130,613.60
  6. Step 6: Final answer
    x = 71,293.18

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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.