Home / 155,487.48-214,570.32-87,499.14

Finding the Fourth Proportional to 155,487.48, 214,570.32 and 87,499.14

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Solution

The fourth proportional to 155,487.48, 214,570.32 and 87,499.14 is: 120,747.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,487.48 : 214,570.32 = 87,499.14 : x
  2. Step 2: Convert to fraction form
    155,487.48/214,570.32 = 87,499.14/x
  3. Step 3: Cross multiply
    155,487.48x = 214,570.32 × 87,499.14
  4. Step 4: Simplify right side
    155,487.48x = 18,774,718,469.52
  5. Step 5: Solve for x
    x = 18,774,718,469.52/155,487.48
  6. Step 6: Final answer
    x = 120,747.46

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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.