Home / 138,938.16-208,407.24-92,282.16

Finding the Fourth Proportional to 138,938.16, 208,407.24 and 92,282.16

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Solution

The fourth proportional to 138,938.16, 208,407.24 and 92,282.16 is: 138,423.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,938.16 : 208,407.24 = 92,282.16 : x
  2. Step 2: Convert to fraction form
    138,938.16/208,407.24 = 92,282.16/x
  3. Step 3: Cross multiply
    138,938.16x = 208,407.24 × 92,282.16
  4. Step 4: Simplify right side
    138,938.16x = 19,232,270,266.84
  5. Step 5: Solve for x
    x = 19,232,270,266.84/138,938.16
  6. Step 6: Final answer
    x = 138,423.24

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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.