Home / 145,440.86-200,727.56-81,790.97

Finding the Fourth Proportional to 145,440.86, 200,727.56 and 81,790.97

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Solution

The fourth proportional to 145,440.86, 200,727.56 and 81,790.97 is: 112,882.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,440.86 : 200,727.56 = 81,790.97 : x
  2. Step 2: Convert to fraction form
    145,440.86/200,727.56 = 81,790.97/x
  3. Step 3: Cross multiply
    145,440.86x = 200,727.56 × 81,790.97
  4. Step 4: Simplify right side
    145,440.86x = 16,417,701,038.97
  5. Step 5: Solve for x
    x = 16,417,701,038.97/145,440.86
  6. Step 6: Final answer
    x = 112,882.32

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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.