Home / 112,949.98-155,872.16-61,962.81

Finding the Fourth Proportional to 112,949.98, 155,872.16 and 61,962.81

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Solution

The fourth proportional to 112,949.98, 155,872.16 and 61,962.81 is: 85,509.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,949.98 : 155,872.16 = 61,962.81 : x
  2. Step 2: Convert to fraction form
    112,949.98/155,872.16 = 61,962.81/x
  3. Step 3: Cross multiply
    112,949.98x = 155,872.16 × 61,962.81
  4. Step 4: Simplify right side
    112,949.98x = 9,658,277,034.37
  5. Step 5: Solve for x
    x = 9,658,277,034.37/112,949.98
  6. Step 6: Final answer
    x = 85,509.33

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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.