Home / 155,342.21-214,370.21-87,359.16

Finding the Fourth Proportional to 155,342.21, 214,370.21 and 87,359.16

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Solution

The fourth proportional to 155,342.21, 214,370.21 and 87,359.16 is: 120,554.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,342.21 : 214,370.21 = 87,359.16 : x
  2. Step 2: Convert to fraction form
    155,342.21/214,370.21 = 87,359.16/x
  3. Step 3: Cross multiply
    155,342.21x = 214,370.21 × 87,359.16
  4. Step 4: Simplify right side
    155,342.21x = 18,727,201,037.83
  5. Step 5: Solve for x
    x = 18,727,201,037.83/155,342.21
  6. Step 6: Final answer
    x = 120,554.49

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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.