Home / 145,976.16-201,448.54-85,582.56

Finding the Fourth Proportional to 145,976.16, 201,448.54 and 85,582.56

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Solution

The fourth proportional to 145,976.16, 201,448.54 and 85,582.56 is: 118,104.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,976.16 : 201,448.54 = 85,582.56 : x
  2. Step 2: Convert to fraction form
    145,976.16/201,448.54 = 85,582.56/x
  3. Step 3: Cross multiply
    145,976.16x = 201,448.54 × 85,582.56
  4. Step 4: Simplify right side
    145,976.16x = 17,240,481,761.46
  5. Step 5: Solve for x
    x = 17,240,481,761.46/145,976.16
  6. Step 6: Final answer
    x = 118,104.78

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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.