Home / 112,203.12-154,840.32-61,902.12

Finding the Fourth Proportional to 112,203.12, 154,840.32 and 61,902.12

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Solution

The fourth proportional to 112,203.12, 154,840.32 and 61,902.12 is: 85,424.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,203.12 : 154,840.32 = 61,902.12 : x
  2. Step 2: Convert to fraction form
    112,203.12/154,840.32 = 61,902.12/x
  3. Step 3: Cross multiply
    112,203.12x = 154,840.32 × 61,902.12
  4. Step 4: Simplify right side
    112,203.12x = 9,584,944,069.48
  5. Step 5: Solve for x
    x = 9,584,944,069.48/112,203.12
  6. Step 6: Final answer
    x = 85,424.93

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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.