Home / 187,720.02-258,990.30-107,090.82

Finding the Fourth Proportional to 187,720.02, 258,990.30 and 107,090.82

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Solution

The fourth proportional to 187,720.02, 258,990.30 and 107,090.82 is: 147,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,720.02 : 258,990.30 = 107,090.82 : x
  2. Step 2: Convert to fraction form
    187,720.02/258,990.30 = 107,090.82/x
  3. Step 3: Cross multiply
    187,720.02x = 258,990.30 × 107,090.82
  4. Step 4: Simplify right side
    187,720.02x = 27,735,483,599.05
  5. Step 5: Solve for x
    x = 27,735,483,599.05/187,720.02
  6. Step 6: Final answer
    x = 147,749.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.