Home / 145,120.36-200,260.31-80,592.93

Finding the Fourth Proportional to 145,120.36, 200,260.31 and 80,592.93

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Solution

The fourth proportional to 145,120.36, 200,260.31 and 80,592.93 is: 111,215.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,120.36 : 200,260.31 = 80,592.93 : x
  2. Step 2: Convert to fraction form
    145,120.36/200,260.31 = 80,592.93/x
  3. Step 3: Cross multiply
    145,120.36x = 200,260.31 × 80,592.93
  4. Step 4: Simplify right side
    145,120.36x = 16,139,565,145.61
  5. Step 5: Solve for x
    x = 16,139,565,145.61/145,120.36
  6. Step 6: Final answer
    x = 111,215.03

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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.