Home / 212,009.48-292,641.26-135,734.00

Finding the Fourth Proportional to 212,009.48, 292,641.26 and 135,734.00

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Solution

The fourth proportional to 212,009.48, 292,641.26 and 135,734.00 is: 187,356.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,009.48 : 292,641.26 = 135,734.00 : x
  2. Step 2: Convert to fraction form
    212,009.48/292,641.26 = 135,734.00/x
  3. Step 3: Cross multiply
    212,009.48x = 292,641.26 × 135,734.00
  4. Step 4: Simplify right side
    212,009.48x = 39,721,369,112.12
  5. Step 5: Solve for x
    x = 39,721,369,112.12/212,009.48
  6. Step 6: Final answer
    x = 187,356.57

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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.