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Finding the Fourth Proportional to 155,725.80, 233,502.30 and 66,964.20

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Solution

The fourth proportional to 155,725.80, 233,502.30 and 66,964.20 is: 100,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,725.80 : 233,502.30 = 66,964.20 : x
  2. Step 2: Convert to fraction form
    155,725.80/233,502.30 = 66,964.20/x
  3. Step 3: Cross multiply
    155,725.80x = 233,502.30 × 66,964.20
  4. Step 4: Simplify right side
    155,725.80x = 15,636,294,717.66
  5. Step 5: Solve for x
    x = 15,636,294,717.66/155,725.80
  6. Step 6: Final answer
    x = 100,409.15

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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.