Home / 105,028.40-157,566.10-38,467.20

Finding the Fourth Proportional to 105,028.40, 157,566.10 and 38,467.20

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Solution

The fourth proportional to 105,028.40, 157,566.10 and 38,467.20 is: 57,709.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,028.40 : 157,566.10 = 38,467.20 : x
  2. Step 2: Convert to fraction form
    105,028.40/157,566.10 = 38,467.20/x
  3. Step 3: Cross multiply
    105,028.40x = 157,566.10 × 38,467.20
  4. Step 4: Simplify right side
    105,028.40x = 6,061,126,681.92
  5. Step 5: Solve for x
    x = 6,061,126,681.92/105,028.40
  6. Step 6: Final answer
    x = 57,709.41

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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.