Home / 151,923.48-209,611.74-87,389.34

Finding the Fourth Proportional to 151,923.48, 209,611.74 and 87,389.34

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Solution

The fourth proportional to 151,923.48, 209,611.74 and 87,389.34 is: 120,572.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,923.48 : 209,611.74 = 87,389.34 : x
  2. Step 2: Convert to fraction form
    151,923.48/209,611.74 = 87,389.34/x
  3. Step 3: Cross multiply
    151,923.48x = 209,611.74 × 87,389.34
  4. Step 4: Simplify right side
    151,923.48x = 18,317,831,614.85
  5. Step 5: Solve for x
    x = 18,317,831,614.85/151,923.48
  6. Step 6: Final answer
    x = 120,572.75

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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.