Home / 112,321.71-155,004.50-61,335.48

Finding the Fourth Proportional to 112,321.71, 155,004.50 and 61,335.48

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Solution

The fourth proportional to 112,321.71, 155,004.50 and 61,335.48 is: 84,643.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,321.71 : 155,004.50 = 61,335.48 : x
  2. Step 2: Convert to fraction form
    112,321.71/155,004.50 = 61,335.48/x
  3. Step 3: Cross multiply
    112,321.71x = 155,004.50 × 61,335.48
  4. Step 4: Simplify right side
    112,321.71x = 9,507,275,102.98
  5. Step 5: Solve for x
    x = 9,507,275,102.98/112,321.71
  6. Step 6: Final answer
    x = 84,643.25

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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.