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Finding the Fourth Proportional to 159,783.20, 240,020.40 and 113,127.20

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Solution

The fourth proportional to 159,783.20, 240,020.40 and 113,127.20 is: 169,935.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,783.20 : 240,020.40 = 113,127.20 : x
  2. Step 2: Convert to fraction form
    159,783.20/240,020.40 = 113,127.20/x
  3. Step 3: Cross multiply
    159,783.20x = 240,020.40 × 113,127.20
  4. Step 4: Simplify right side
    159,783.20x = 27,152,835,794.88
  5. Step 5: Solve for x
    x = 27,152,835,794.88/159,783.20
  6. Step 6: Final answer
    x = 169,935.49

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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.