Home / 122,079.60-183,227.40-72,097.20

Finding the Fourth Proportional to 122,079.60, 183,227.40 and 72,097.20

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Solution

The fourth proportional to 122,079.60, 183,227.40 and 72,097.20 is: 108,209.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,079.60 : 183,227.40 = 72,097.20 : x
  2. Step 2: Convert to fraction form
    122,079.60/183,227.40 = 72,097.20/x
  3. Step 3: Cross multiply
    122,079.60x = 183,227.40 × 72,097.20
  4. Step 4: Simplify right side
    122,079.60x = 13,210,182,503.28
  5. Step 5: Solve for x
    x = 13,210,182,503.28/122,079.60
  6. Step 6: Final answer
    x = 108,209.58

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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.