Home / 105,115.02-157,578.78-38,539.62

Finding the Fourth Proportional to 105,115.02, 157,578.78 and 38,539.62

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Solution

The fourth proportional to 105,115.02, 157,578.78 and 38,539.62 is: 57,775.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,115.02 : 157,578.78 = 38,539.62 : x
  2. Step 2: Convert to fraction form
    105,115.02/157,578.78 = 38,539.62/x
  3. Step 3: Cross multiply
    105,115.02x = 157,578.78 × 38,539.62
  4. Step 4: Simplify right side
    105,115.02x = 6,073,026,301.26
  5. Step 5: Solve for x
    x = 6,073,026,301.26/105,115.02
  6. Step 6: Final answer
    x = 57,775.06

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1.5x scale

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.