Home / 151,255.02-208,728.11-83,271.32

Finding the Fourth Proportional to 151,255.02, 208,728.11 and 83,271.32

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Solution

The fourth proportional to 151,255.02, 208,728.11 and 83,271.32 is: 114,912.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,255.02 : 208,728.11 = 83,271.32 : x
  2. Step 2: Convert to fraction form
    151,255.02/208,728.11 = 83,271.32/x
  3. Step 3: Cross multiply
    151,255.02x = 208,728.11 × 83,271.32
  4. Step 4: Simplify right side
    151,255.02x = 17,381,064,405.34
  5. Step 5: Solve for x
    x = 17,381,064,405.34/151,255.02
  6. Step 6: Final answer
    x = 114,912.31

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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.