Home / 83,109.77-125,225.64-68,642.76

Finding the Fourth Proportional to 83,109.77, 125,225.64 and 68,642.76

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Solution

The fourth proportional to 83,109.77, 125,225.64 and 68,642.76 is: 103,427.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,109.77 : 125,225.64 = 68,642.76 : x
  2. Step 2: Convert to fraction form
    83,109.77/125,225.64 = 68,642.76/x
  3. Step 3: Cross multiply
    83,109.77x = 125,225.64 × 68,642.76
  4. Step 4: Simplify right side
    83,109.77x = 8,595,833,552.37
  5. Step 5: Solve for x
    x = 8,595,833,552.37/83,109.77
  6. Step 6: Final answer
    x = 103,427.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.