Home / 145,577.88-200,772.54-100,329.12

Finding the Fourth Proportional to 145,577.88, 200,772.54 and 100,329.12

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Solution

The fourth proportional to 145,577.88, 200,772.54 and 100,329.12 is: 138,368.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,577.88 : 200,772.54 = 100,329.12 : x
  2. Step 2: Convert to fraction form
    145,577.88/200,772.54 = 100,329.12/x
  3. Step 3: Cross multiply
    145,577.88x = 200,772.54 × 100,329.12
  4. Step 4: Simplify right side
    145,577.88x = 20,143,332,258.36
  5. Step 5: Solve for x
    x = 20,143,332,258.36/145,577.88
  6. Step 6: Final answer
    x = 138,368.08

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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.