Home / 147,119.40-220,679.10-130,206.60

Finding the Fourth Proportional to 147,119.40, 220,679.10 and 130,206.60

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Solution

The fourth proportional to 147,119.40, 220,679.10 and 130,206.60 is: 195,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,119.40 : 220,679.10 = 130,206.60 : x
  2. Step 2: Convert to fraction form
    147,119.40/220,679.10 = 130,206.60/x
  3. Step 3: Cross multiply
    147,119.40x = 220,679.10 × 130,206.60
  4. Step 4: Simplify right side
    147,119.40x = 28,733,875,302.06
  5. Step 5: Solve for x
    x = 28,733,875,302.06/147,119.40
  6. Step 6: Final answer
    x = 195,309.90

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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.