Home / 125,080.89-172,611.69-67,720.23

Finding the Fourth Proportional to 125,080.89, 172,611.69 and 67,720.23

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Solution

The fourth proportional to 125,080.89, 172,611.69 and 67,720.23 is: 93,453.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,080.89 : 172,611.69 = 67,720.23 : x
  2. Step 2: Convert to fraction form
    125,080.89/172,611.69 = 67,720.23/x
  3. Step 3: Cross multiply
    125,080.89x = 172,611.69 × 67,720.23
  4. Step 4: Simplify right side
    125,080.89x = 11,689,303,347.49
  5. Step 5: Solve for x
    x = 11,689,303,347.49/125,080.89
  6. Step 6: Final answer
    x = 93,453.95

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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.