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Finding the Fourth Proportional to 127,209.58, 175,528.74 and 73,501.72

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Solution

The fourth proportional to 127,209.58, 175,528.74 and 73,501.72 is: 101,420.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,209.58 : 175,528.74 = 73,501.72 : x
  2. Step 2: Convert to fraction form
    127,209.58/175,528.74 = 73,501.72/x
  3. Step 3: Cross multiply
    127,209.58x = 175,528.74 × 73,501.72
  4. Step 4: Simplify right side
    127,209.58x = 12,901,664,299.43
  5. Step 5: Solve for x
    x = 12,901,664,299.43/127,209.58
  6. Step 6: Final answer
    x = 101,420.54

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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.