Home / 162,361.06-243,454.56-81,295.35

Finding the Fourth Proportional to 162,361.06, 243,454.56 and 81,295.35

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Solution

The fourth proportional to 162,361.06, 243,454.56 and 81,295.35 is: 121,899.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,361.06 : 243,454.56 = 81,295.35 : x
  2. Step 2: Convert to fraction form
    162,361.06/243,454.56 = 81,295.35/x
  3. Step 3: Cross multiply
    162,361.06x = 243,454.56 × 81,295.35
  4. Step 4: Simplify right side
    162,361.06x = 19,791,722,903.77
  5. Step 5: Solve for x
    x = 19,791,722,903.77/162,361.06
  6. Step 6: Final answer
    x = 121,899.45

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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.