Home / 125,984.97-173,809.40-87,734.34

Finding the Fourth Proportional to 125,984.97, 173,809.40 and 87,734.34

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Solution

The fourth proportional to 125,984.97, 173,809.40 and 87,734.34 is: 121,038.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,984.97 : 173,809.40 = 87,734.34 : x
  2. Step 2: Convert to fraction form
    125,984.97/173,809.40 = 87,734.34/x
  3. Step 3: Cross multiply
    125,984.97x = 173,809.40 × 87,734.34
  4. Step 4: Simplify right side
    125,984.97x = 15,249,052,556.12
  5. Step 5: Solve for x
    x = 15,249,052,556.12/125,984.97
  6. Step 6: Final answer
    x = 121,038.66

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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.