Home / 125,857.04-173,719.60-74,905.60

Finding the Fourth Proportional to 125,857.04, 173,719.60 and 74,905.60

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Solution

The fourth proportional to 125,857.04, 173,719.60 and 74,905.60 is: 103,391.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,857.04 : 173,719.60 = 74,905.60 : x
  2. Step 2: Convert to fraction form
    125,857.04/173,719.60 = 74,905.60/x
  3. Step 3: Cross multiply
    125,857.04x = 173,719.60 × 74,905.60
  4. Step 4: Simplify right side
    125,857.04x = 13,012,570,869.76
  5. Step 5: Solve for x
    x = 13,012,570,869.76/125,857.04
  6. Step 6: Final answer
    x = 103,391.68

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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.