Home / 134,725.12-185,919.54-74,298.28

Finding the Fourth Proportional to 134,725.12, 185,919.54 and 74,298.28

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Solution

The fourth proportional to 134,725.12, 185,919.54 and 74,298.28 is: 102,531.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,725.12 : 185,919.54 = 74,298.28 : x
  2. Step 2: Convert to fraction form
    134,725.12/185,919.54 = 74,298.28/x
  3. Step 3: Cross multiply
    134,725.12x = 185,919.54 × 74,298.28
  4. Step 4: Simplify right side
    134,725.12x = 13,813,502,040.39
  5. Step 5: Solve for x
    x = 13,813,502,040.39/134,725.12
  6. Step 6: Final answer
    x = 102,531.01

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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.