Home / 151,195.82-208,681.72-90,769.01

Finding the Fourth Proportional to 151,195.82, 208,681.72 and 90,769.01

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Solution

The fourth proportional to 151,195.82, 208,681.72 and 90,769.01 is: 125,280.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,195.82 : 208,681.72 = 90,769.01 : x
  2. Step 2: Convert to fraction form
    151,195.82/208,681.72 = 90,769.01/x
  3. Step 3: Cross multiply
    151,195.82x = 208,681.72 × 90,769.01
  4. Step 4: Simplify right side
    151,195.82x = 18,941,831,859.17
  5. Step 5: Solve for x
    x = 18,941,831,859.17/151,195.82
  6. Step 6: Final answer
    x = 125,280.13

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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.