Home / 127,875.12-191,840.34-48,989.28

Finding the Fourth Proportional to 127,875.12, 191,840.34 and 48,989.28

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Solution

The fourth proportional to 127,875.12, 191,840.34 and 48,989.28 is: 73,494.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,875.12 : 191,840.34 = 48,989.28 : x
  2. Step 2: Convert to fraction form
    127,875.12/191,840.34 = 48,989.28/x
  3. Step 3: Cross multiply
    127,875.12x = 191,840.34 × 48,989.28
  4. Step 4: Simplify right side
    127,875.12x = 9,398,120,131.56
  5. Step 5: Solve for x
    x = 9,398,120,131.56/127,875.12
  6. Step 6: Final answer
    x = 73,494.52

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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.