Home / 125,210.75-172,757.21-71,485.07

Finding the Fourth Proportional to 125,210.75, 172,757.21 and 71,485.07

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Solution

The fourth proportional to 125,210.75, 172,757.21 and 71,485.07 is: 98,630.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,210.75 : 172,757.21 = 71,485.07 : x
  2. Step 2: Convert to fraction form
    125,210.75/172,757.21 = 71,485.07/x
  3. Step 3: Cross multiply
    125,210.75x = 172,757.21 × 71,485.07
  4. Step 4: Simplify right side
    125,210.75x = 12,349,560,028.64
  5. Step 5: Solve for x
    x = 12,349,560,028.64/125,210.75
  6. Step 6: Final answer
    x = 98,630.19

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1.5x scale

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.