Home / 112,118.70-154,725.02-61,131.02

Finding the Fourth Proportional to 112,118.70, 154,725.02 and 61,131.02

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Solution

The fourth proportional to 112,118.70, 154,725.02 and 61,131.02 is: 84,361.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,118.70 : 154,725.02 = 61,131.02 : x
  2. Step 2: Convert to fraction form
    112,118.70/154,725.02 = 61,131.02/x
  3. Step 3: Cross multiply
    112,118.70x = 154,725.02 × 61,131.02
  4. Step 4: Simplify right side
    112,118.70x = 9,458,497,442.08
  5. Step 5: Solve for x
    x = 9,458,497,442.08/112,118.70
  6. Step 6: Final answer
    x = 84,361.46

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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.