Home / 130,829.10-196,243.65-47,712.30

Finding the Fourth Proportional to 130,829.10, 196,243.65 and 47,712.30

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Solution

The fourth proportional to 130,829.10, 196,243.65 and 47,712.30 is: 71,568.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,829.10 : 196,243.65 = 47,712.30 : x
  2. Step 2: Convert to fraction form
    130,829.10/196,243.65 = 47,712.30/x
  3. Step 3: Cross multiply
    130,829.10x = 196,243.65 × 47,712.30
  4. Step 4: Simplify right side
    130,829.10x = 9,363,235,901.90
  5. Step 5: Solve for x
    x = 9,363,235,901.90/130,829.10
  6. Step 6: Final answer
    x = 71,568.45

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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.