Home / 130,885.04-196,316.22-80,972.84

Finding the Fourth Proportional to 130,885.04, 196,316.22 and 80,972.84

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Solution

The fourth proportional to 130,885.04, 196,316.22 and 80,972.84 is: 121,452.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,885.04 : 196,316.22 = 80,972.84 : x
  2. Step 2: Convert to fraction form
    130,885.04/196,316.22 = 80,972.84/x
  3. Step 3: Cross multiply
    130,885.04x = 196,316.22 × 80,972.84
  4. Step 4: Simplify right side
    130,885.04x = 15,896,281,871.46
  5. Step 5: Solve for x
    x = 15,896,281,871.46/130,885.04
  6. Step 6: Final answer
    x = 121,452.24

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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.