Home / 212,263.82-292,723.02-135,807.11

Finding the Fourth Proportional to 212,263.82, 292,723.02 and 135,807.11

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Solution

The fourth proportional to 212,263.82, 292,723.02 and 135,807.11 is: 187,285.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,263.82 : 292,723.02 = 135,807.11 : x
  2. Step 2: Convert to fraction form
    212,263.82/292,723.02 = 135,807.11/x
  3. Step 3: Cross multiply
    212,263.82x = 292,723.02 × 135,807.11
  4. Step 4: Simplify right side
    212,263.82x = 39,753,865,913.06
  5. Step 5: Solve for x
    x = 39,753,865,913.06/212,263.82
  6. Step 6: Final answer
    x = 187,285.18

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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.