Home / 124,222.34-171,533.39-120,205.40

Finding the Fourth Proportional to 124,222.34, 171,533.39 and 120,205.40

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Solution

The fourth proportional to 124,222.34, 171,533.39 and 120,205.40 is: 165,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,222.34 : 171,533.39 = 120,205.40 : x
  2. Step 2: Convert to fraction form
    124,222.34/171,533.39 = 120,205.40/x
  3. Step 3: Cross multiply
    124,222.34x = 171,533.39 × 120,205.40
  4. Step 4: Simplify right side
    124,222.34x = 20,619,238,987.18
  5. Step 5: Solve for x
    x = 20,619,238,987.18/124,222.34
  6. Step 6: Final answer
    x = 165,986.55

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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.