Home / 151,232.70-208,688.76-87,574.62

Finding the Fourth Proportional to 151,232.70, 208,688.76 and 87,574.62

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Solution

The fourth proportional to 151,232.70, 208,688.76 and 87,574.62 is: 120,845.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,232.70 : 208,688.76 = 87,574.62 : x
  2. Step 2: Convert to fraction form
    151,232.70/208,688.76 = 87,574.62/x
  3. Step 3: Cross multiply
    151,232.70x = 208,688.76 × 87,574.62
  4. Step 4: Simplify right side
    151,232.70x = 18,275,838,855.27
  5. Step 5: Solve for x
    x = 18,275,838,855.27/151,232.70
  6. Step 6: Final answer
    x = 120,845.81

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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.