Home / 125,038.05-172,546.29-71,321.07

Finding the Fourth Proportional to 125,038.05, 172,546.29 and 71,321.07

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Solution

The fourth proportional to 125,038.05, 172,546.29 and 71,321.07 is: 98,419.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,038.05 : 172,546.29 = 71,321.07 : x
  2. Step 2: Convert to fraction form
    125,038.05/172,546.29 = 71,321.07/x
  3. Step 3: Cross multiply
    125,038.05x = 172,546.29 × 71,321.07
  4. Step 4: Simplify right side
    125,038.05x = 12,306,186,027.33
  5. Step 5: Solve for x
    x = 12,306,186,027.33/125,038.05
  6. Step 6: Final answer
    x = 98,419.53

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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.