Home / 155,725.45-214,901.16-84,105.52

Finding the Fourth Proportional to 155,725.45, 214,901.16 and 84,105.52

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Solution

The fourth proportional to 155,725.45, 214,901.16 and 84,105.52 is: 116,065.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,725.45 : 214,901.16 = 84,105.52 : x
  2. Step 2: Convert to fraction form
    155,725.45/214,901.16 = 84,105.52/x
  3. Step 3: Cross multiply
    155,725.45x = 214,901.16 × 84,105.52
  4. Step 4: Simplify right side
    155,725.45x = 18,074,373,810.40
  5. Step 5: Solve for x
    x = 18,074,373,810.40/155,725.45
  6. Step 6: Final answer
    x = 116,065.64

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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.