Home / 112,321.89-155,004.57-61,335.09

Finding the Fourth Proportional to 112,321.89, 155,004.57 and 61,335.09

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Solution

The fourth proportional to 112,321.89, 155,004.57 and 61,335.09 is: 84,642.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,321.89 : 155,004.57 = 61,335.09 : x
  2. Step 2: Convert to fraction form
    112,321.89/155,004.57 = 61,335.09/x
  3. Step 3: Cross multiply
    112,321.89x = 155,004.57 × 61,335.09
  4. Step 4: Simplify right side
    112,321.89x = 9,507,219,251.36
  5. Step 5: Solve for x
    x = 9,507,219,251.36/112,321.89
  6. Step 6: Final answer
    x = 84,642.62

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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.