Home / 125,017.50-172,525.78-68,427.66

Finding the Fourth Proportional to 125,017.50, 172,525.78 and 68,427.66

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Solution

The fourth proportional to 125,017.50, 172,525.78 and 68,427.66 is: 94,431.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,017.50 : 172,525.78 = 68,427.66 : x
  2. Step 2: Convert to fraction form
    125,017.50/172,525.78 = 68,427.66/x
  3. Step 3: Cross multiply
    125,017.50x = 172,525.78 × 68,427.66
  4. Step 4: Simplify right side
    125,017.50x = 11,805,535,415.07
  5. Step 5: Solve for x
    x = 11,805,535,415.07/125,017.50
  6. Step 6: Final answer
    x = 94,431.06

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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.