Home / 145,027.72-200,145.54-90,612.64

Finding the Fourth Proportional to 145,027.72, 200,145.54 and 90,612.64

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Solution

The fourth proportional to 145,027.72, 200,145.54 and 90,612.64 is: 125,050.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,027.72 : 200,145.54 = 90,612.64 : x
  2. Step 2: Convert to fraction form
    145,027.72/200,145.54 = 90,612.64/x
  3. Step 3: Cross multiply
    145,027.72x = 200,145.54 × 90,612.64
  4. Step 4: Simplify right side
    145,027.72x = 18,135,715,763.63
  5. Step 5: Solve for x
    x = 18,135,715,763.63/145,027.72
  6. Step 6: Final answer
    x = 125,050.00

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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.