Home / 125,419.58-173,072.97-71,710.50

Finding the Fourth Proportional to 125,419.58, 173,072.97 and 71,710.50

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Solution

The fourth proportional to 125,419.58, 173,072.97 and 71,710.50 is: 98,957.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,419.58 : 173,072.97 = 71,710.50 : x
  2. Step 2: Convert to fraction form
    125,419.58/173,072.97 = 71,710.50/x
  3. Step 3: Cross multiply
    125,419.58x = 173,072.97 × 71,710.50
  4. Step 4: Simplify right side
    125,419.58x = 12,411,149,215.19
  5. Step 5: Solve for x
    x = 12,411,149,215.19/125,419.58
  6. Step 6: Final answer
    x = 98,957.03

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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.