Home / 129,973.20-194,862.60-70,875.60

Finding the Fourth Proportional to 129,973.20, 194,862.60 and 70,875.60

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Solution

The fourth proportional to 129,973.20, 194,862.60 and 70,875.60 is: 106,260.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,973.20 : 194,862.60 = 70,875.60 : x
  2. Step 2: Convert to fraction form
    129,973.20/194,862.60 = 70,875.60/x
  3. Step 3: Cross multiply
    129,973.20x = 194,862.60 × 70,875.60
  4. Step 4: Simplify right side
    129,973.20x = 13,811,003,692.56
  5. Step 5: Solve for x
    x = 13,811,003,692.56/129,973.20
  6. Step 6: Final answer
    x = 106,260.40

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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.