Home / 145,409.07-200,683.22-81,759.17

Finding the Fourth Proportional to 145,409.07, 200,683.22 and 81,759.17

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Solution

The fourth proportional to 145,409.07, 200,683.22 and 81,759.17 is: 112,838.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,409.07 : 200,683.22 = 81,759.17 : x
  2. Step 2: Convert to fraction form
    145,409.07/200,683.22 = 81,759.17/x
  3. Step 3: Cross multiply
    145,409.07x = 200,683.22 × 81,759.17
  4. Step 4: Simplify right side
    145,409.07x = 16,407,694,052.93
  5. Step 5: Solve for x
    x = 16,407,694,052.93/145,409.07
  6. Step 6: Final answer
    x = 112,838.17

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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.