Home / 125,400.36-173,052.48-71,686.50

Finding the Fourth Proportional to 125,400.36, 173,052.48 and 71,686.50

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Solution

The fourth proportional to 125,400.36, 173,052.48 and 71,686.50 is: 98,927.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,400.36 : 173,052.48 = 71,686.50 : x
  2. Step 2: Convert to fraction form
    125,400.36/173,052.48 = 71,686.50/x
  3. Step 3: Cross multiply
    125,400.36x = 173,052.48 × 71,686.50
  4. Step 4: Simplify right side
    125,400.36x = 12,405,526,607.52
  5. Step 5: Solve for x
    x = 12,405,526,607.52/125,400.36
  6. Step 6: Final answer
    x = 98,927.36

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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.