Home / 127,620.02-191,457.70-38,871.20

Finding the Fourth Proportional to 127,620.02, 191,457.70 and 38,871.20

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Solution

The fourth proportional to 127,620.02, 191,457.70 and 38,871.20 is: 58,315.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,620.02 : 191,457.70 = 38,871.20 : x
  2. Step 2: Convert to fraction form
    127,620.02/191,457.70 = 38,871.20/x
  3. Step 3: Cross multiply
    127,620.02x = 191,457.70 × 38,871.20
  4. Step 4: Simplify right side
    127,620.02x = 7,442,190,548.24
  5. Step 5: Solve for x
    x = 7,442,190,548.24/127,620.02
  6. Step 6: Final answer
    x = 58,315.23

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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.