Home / 145,840.30-218,760.45-122,512.30

Finding the Fourth Proportional to 145,840.30, 218,760.45 and 122,512.30

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Solution

The fourth proportional to 145,840.30, 218,760.45 and 122,512.30 is: 183,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,840.30 : 218,760.45 = 122,512.30 : x
  2. Step 2: Convert to fraction form
    145,840.30/218,760.45 = 122,512.30/x
  3. Step 3: Cross multiply
    145,840.30x = 218,760.45 × 122,512.30
  4. Step 4: Simplify right side
    145,840.30x = 26,800,845,878.54
  5. Step 5: Solve for x
    x = 26,800,845,878.54/145,840.30
  6. Step 6: Final answer
    x = 183,768.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.