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Finding the Fourth Proportional to 127,223.62, 175,574.08 and 70,635

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Solution

The fourth proportional to 127,223.62, 175,574.08 and 70,635 is: 97,479.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,223.62 : 175,574.08 = 70,635 : x
  2. Step 2: Convert to fraction form
    127,223.62/175,574.08 = 70,635/x
  3. Step 3: Cross multiply
    127,223.62x = 175,574.08 × 70,635
  4. Step 4: Simplify right side
    127,223.62x = 12,401,675,140.80
  5. Step 5: Solve for x
    x = 12,401,675,140.80/127,223.62
  6. Step 6: Final answer
    x = 97,479.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.