Home / 155,119.06-214,085.87-87,141.23

Finding the Fourth Proportional to 155,119.06, 214,085.87 and 87,141.23

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Solution

The fourth proportional to 155,119.06, 214,085.87 and 87,141.23 is: 120,267.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,119.06 : 214,085.87 = 87,141.23 : x
  2. Step 2: Convert to fraction form
    155,119.06/214,085.87 = 87,141.23/x
  3. Step 3: Cross multiply
    155,119.06x = 214,085.87 × 87,141.23
  4. Step 4: Simplify right side
    155,119.06x = 18,655,706,037.42
  5. Step 5: Solve for x
    x = 18,655,706,037.42/155,119.06
  6. Step 6: Final answer
    x = 120,267.01

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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.