Home / 127,530.63-191,255.07-42,122.46

Finding the Fourth Proportional to 127,530.63, 191,255.07 and 42,122.46

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Solution

The fourth proportional to 127,530.63, 191,255.07 and 42,122.46 is: 63,170.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,530.63 : 191,255.07 = 42,122.46 : x
  2. Step 2: Convert to fraction form
    127,530.63/191,255.07 = 42,122.46/x
  3. Step 3: Cross multiply
    127,530.63x = 191,255.07 × 42,122.46
  4. Step 4: Simplify right side
    127,530.63x = 8,056,134,035.87
  5. Step 5: Solve for x
    x = 8,056,134,035.87/127,530.63
  6. Step 6: Final answer
    x = 63,170.19

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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.