Home / 125,813.87-173,627.90-72,109.25

Finding the Fourth Proportional to 125,813.87, 173,627.90 and 72,109.25

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Solution

The fourth proportional to 125,813.87, 173,627.90 and 72,109.25 is: 99,513.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,813.87 : 173,627.90 = 72,109.25 : x
  2. Step 2: Convert to fraction form
    125,813.87/173,627.90 = 72,109.25/x
  3. Step 3: Cross multiply
    125,813.87x = 173,627.90 × 72,109.25
  4. Step 4: Simplify right side
    125,813.87x = 12,520,176,419.39
  5. Step 5: Solve for x
    x = 12,520,176,419.39/125,813.87
  6. Step 6: Final answer
    x = 99,513.49

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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.