Home / 124,455.20-187,071.60-122,122.40

Finding the Fourth Proportional to 124,455.20, 187,071.60 and 122,122.40

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Solution

The fourth proportional to 124,455.20, 187,071.60 and 122,122.40 is: 183,565.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,455.20 : 187,071.60 = 122,122.40 : x
  2. Step 2: Convert to fraction form
    124,455.20/187,071.60 = 122,122.40/x
  3. Step 3: Cross multiply
    124,455.20x = 187,071.60 × 122,122.40
  4. Step 4: Simplify right side
    124,455.20x = 22,845,632,763.84
  5. Step 5: Solve for x
    x = 22,845,632,763.84/124,455.20
  6. Step 6: Final answer
    x = 183,565.11

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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.