Home / 212,309.83-292,995.63-121,683.29

Finding the Fourth Proportional to 212,309.83, 292,995.63 and 121,683.29

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Solution

The fourth proportional to 212,309.83, 292,995.63 and 121,683.29 is: 167,927.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,309.83 : 292,995.63 = 121,683.29 : x
  2. Step 2: Convert to fraction form
    212,309.83/292,995.63 = 121,683.29/x
  3. Step 3: Cross multiply
    212,309.83x = 292,995.63 × 121,683.29
  4. Step 4: Simplify right side
    212,309.83x = 35,652,670,749.04
  5. Step 5: Solve for x
    x = 35,652,670,749.04/212,309.83
  6. Step 6: Final answer
    x = 167,927.55

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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.