Home / 136,028.32-187,259.52-112,117.12

Finding the Fourth Proportional to 136,028.32, 187,259.52 and 112,117.12

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Solution

The fourth proportional to 136,028.32, 187,259.52 and 112,117.12 is: 154,342.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,028.32 : 187,259.52 = 112,117.12 : x
  2. Step 2: Convert to fraction form
    136,028.32/187,259.52 = 112,117.12/x
  3. Step 3: Cross multiply
    136,028.32x = 187,259.52 × 112,117.12
  4. Step 4: Simplify right side
    136,028.32x = 20,994,998,074.98
  5. Step 5: Solve for x
    x = 20,994,998,074.98/136,028.32
  6. Step 6: Final answer
    x = 154,342.85

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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.