Home / 145,798.08-200,919.60-105,440.64

Finding the Fourth Proportional to 145,798.08, 200,919.60 and 105,440.64

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Solution

The fourth proportional to 145,798.08, 200,919.60 and 105,440.64 is: 145,304.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,798.08 : 200,919.60 = 105,440.64 : x
  2. Step 2: Convert to fraction form
    145,798.08/200,919.60 = 105,440.64/x
  3. Step 3: Cross multiply
    145,798.08x = 200,919.60 × 105,440.64
  4. Step 4: Simplify right side
    145,798.08x = 21,185,091,212.54
  5. Step 5: Solve for x
    x = 21,185,091,212.54/145,798.08
  6. Step 6: Final answer
    x = 145,304.32

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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.