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Finding the Fourth Proportional to 146,751.40, 220,127.10 and 123,423.40

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Solution

The fourth proportional to 146,751.40, 220,127.10 and 123,423.40 is: 185,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,751.40 : 220,127.10 = 123,423.40 : x
  2. Step 2: Convert to fraction form
    146,751.40/220,127.10 = 123,423.40/x
  3. Step 3: Cross multiply
    146,751.40x = 220,127.10 × 123,423.40
  4. Step 4: Simplify right side
    146,751.40x = 27,168,835,114.14
  5. Step 5: Solve for x
    x = 27,168,835,114.14/146,751.40
  6. Step 6: Final answer
    x = 185,135.10

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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.