Home / 151,528.32-209,154.96-87,881.76

Finding the Fourth Proportional to 151,528.32, 209,154.96 and 87,881.76

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Solution

The fourth proportional to 151,528.32, 209,154.96 and 87,881.76 is: 121,303.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,528.32 : 209,154.96 = 87,881.76 : x
  2. Step 2: Convert to fraction form
    151,528.32/209,154.96 = 87,881.76/x
  3. Step 3: Cross multiply
    151,528.32x = 209,154.96 × 87,881.76
  4. Step 4: Simplify right side
    151,528.32x = 18,380,905,997.53
  5. Step 5: Solve for x
    x = 18,380,905,997.53/151,528.32
  6. Step 6: Final answer
    x = 121,303.44

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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.