Home / 135,425.40-203,138.10-101,964.30

Finding the Fourth Proportional to 135,425.40, 203,138.10 and 101,964.30

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Solution

The fourth proportional to 135,425.40, 203,138.10 and 101,964.30 is: 152,946.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,425.40 : 203,138.10 = 101,964.30 : x
  2. Step 2: Convert to fraction form
    135,425.40/203,138.10 = 101,964.30/x
  3. Step 3: Cross multiply
    135,425.40x = 203,138.10 × 101,964.30
  4. Step 4: Simplify right side
    135,425.40x = 20,712,834,169.83
  5. Step 5: Solve for x
    x = 20,712,834,169.83/135,425.40
  6. Step 6: Final answer
    x = 152,946.45

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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.