Home / 130,998.40-196,478.46-64,420.65

Finding the Fourth Proportional to 130,998.40, 196,478.46 and 64,420.65

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Solution

The fourth proportional to 130,998.40, 196,478.46 and 64,420.65 is: 96,621.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,998.40 : 196,478.46 = 64,420.65 : x
  2. Step 2: Convert to fraction form
    130,998.40/196,478.46 = 64,420.65/x
  3. Step 3: Cross multiply
    130,998.40x = 196,478.46 × 64,420.65
  4. Step 4: Simplify right side
    130,998.40x = 12,657,270,104.20
  5. Step 5: Solve for x
    x = 12,657,270,104.20/130,998.40
  6. Step 6: Final answer
    x = 96,621.56

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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.