Home / 149,247.45-205,803.63-115,261.47

Finding the Fourth Proportional to 149,247.45, 205,803.63 and 115,261.47

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Solution

The fourth proportional to 149,247.45, 205,803.63 and 115,261.47 is: 158,938.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,247.45 : 205,803.63 = 115,261.47 : x
  2. Step 2: Convert to fraction form
    149,247.45/205,803.63 = 115,261.47/x
  3. Step 3: Cross multiply
    149,247.45x = 205,803.63 × 115,261.47
  4. Step 4: Simplify right side
    149,247.45x = 23,721,228,925.14
  5. Step 5: Solve for x
    x = 23,721,228,925.14/149,247.45
  6. Step 6: Final answer
    x = 158,938.92

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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.