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Finding the Fourth Proportional to 113,297.40, 169,946.10 and 39,425.40

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Solution

The fourth proportional to 113,297.40, 169,946.10 and 39,425.40 is: 59,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,297.40 : 169,946.10 = 39,425.40 : x
  2. Step 2: Convert to fraction form
    113,297.40/169,946.10 = 39,425.40/x
  3. Step 3: Cross multiply
    113,297.40x = 169,946.10 × 39,425.40
  4. Step 4: Simplify right side
    113,297.40x = 6,700,192,970.94
  5. Step 5: Solve for x
    x = 6,700,192,970.94/113,297.40
  6. Step 6: Final answer
    x = 59,138.10

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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.