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Finding the Fourth Proportional to 144,695.80, 217,043.70 and 102,705.40

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Solution

The fourth proportional to 144,695.80, 217,043.70 and 102,705.40 is: 154,058.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,695.80 : 217,043.70 = 102,705.40 : x
  2. Step 2: Convert to fraction form
    144,695.80/217,043.70 = 102,705.40/x
  3. Step 3: Cross multiply
    144,695.80x = 217,043.70 × 102,705.40
  4. Step 4: Simplify right side
    144,695.80x = 22,291,560,025.98
  5. Step 5: Solve for x
    x = 22,291,560,025.98/144,695.80
  6. Step 6: Final answer
    x = 154,058.10

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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.