Home / 144,857.20-217,285.80-105,228.40

Finding the Fourth Proportional to 144,857.20, 217,285.80 and 105,228.40

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Solution

The fourth proportional to 144,857.20, 217,285.80 and 105,228.40 is: 157,842.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,857.20 : 217,285.80 = 105,228.40 : x
  2. Step 2: Convert to fraction form
    144,857.20/217,285.80 = 105,228.40/x
  3. Step 3: Cross multiply
    144,857.20x = 217,285.80 × 105,228.40
  4. Step 4: Simplify right side
    144,857.20x = 22,864,637,076.72
  5. Step 5: Solve for x
    x = 22,864,637,076.72/144,857.20
  6. Step 6: Final answer
    x = 157,842.60

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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.