Home / 212,220.56-292,905.98-121,637.25

Finding the Fourth Proportional to 212,220.56, 292,905.98 and 121,637.25

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Solution

The fourth proportional to 212,220.56, 292,905.98 and 121,637.25 is: 167,883.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,220.56 : 292,905.98 = 121,637.25 : x
  2. Step 2: Convert to fraction form
    212,220.56/292,905.98 = 121,637.25/x
  3. Step 3: Cross multiply
    212,220.56x = 292,905.98 × 121,637.25
  4. Step 4: Simplify right side
    212,220.56x = 35,628,276,665.31
  5. Step 5: Solve for x
    x = 35,628,276,665.31/212,220.56
  6. Step 6: Final answer
    x = 167,883.25

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1.5x scale

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.