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Finding the Fourth Proportional to 127,144.08, 175,450.05 and 70,551

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Solution

The fourth proportional to 127,144.08, 175,450.05 and 70,551 is: 97,355.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,144.08 : 175,450.05 = 70,551 : x
  2. Step 2: Convert to fraction form
    127,144.08/175,450.05 = 70,551/x
  3. Step 3: Cross multiply
    127,144.08x = 175,450.05 × 70,551
  4. Step 4: Simplify right side
    127,144.08x = 12,378,176,477.55
  5. Step 5: Solve for x
    x = 12,378,176,477.55/127,144.08
  6. Step 6: Final answer
    x = 97,355.51

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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.