Home / 125,637.75-173,420.49-80,437.47

Finding the Fourth Proportional to 125,637.75, 173,420.49 and 80,437.47

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Solution

The fourth proportional to 125,637.75, 173,420.49 and 80,437.47 is: 111,029.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,637.75 : 173,420.49 = 80,437.47 : x
  2. Step 2: Convert to fraction form
    125,637.75/173,420.49 = 80,437.47/x
  3. Step 3: Cross multiply
    125,637.75x = 173,420.49 × 80,437.47
  4. Step 4: Simplify right side
    125,637.75x = 13,949,505,461.76
  5. Step 5: Solve for x
    x = 13,949,505,461.76/125,637.75
  6. Step 6: Final answer
    x = 111,029.57

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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.