Home / 112,312.44-154,972.85-66,365.69

Finding the Fourth Proportional to 112,312.44, 154,972.85 and 66,365.69

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Solution

The fourth proportional to 112,312.44, 154,972.85 and 66,365.69 is: 91,573.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,312.44 : 154,972.85 = 66,365.69 : x
  2. Step 2: Convert to fraction form
    112,312.44/154,972.85 = 66,365.69/x
  3. Step 3: Cross multiply
    112,312.44x = 154,972.85 × 66,365.69
  4. Step 4: Simplify right side
    112,312.44x = 10,284,879,014.82
  5. Step 5: Solve for x
    x = 10,284,879,014.82/112,312.44
  6. Step 6: Final answer
    x = 91,573.82

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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.