Home / 145,160.28-200,318.22-81,498.07

Finding the Fourth Proportional to 145,160.28, 200,318.22 and 81,498.07

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Solution

The fourth proportional to 145,160.28, 200,318.22 and 81,498.07 is: 112,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,160.28 : 200,318.22 = 81,498.07 : x
  2. Step 2: Convert to fraction form
    145,160.28/200,318.22 = 81,498.07/x
  3. Step 3: Cross multiply
    145,160.28x = 200,318.22 × 81,498.07
  4. Step 4: Simplify right side
    145,160.28x = 16,325,548,315.84
  5. Step 5: Solve for x
    x = 16,325,548,315.84/145,160.28
  6. Step 6: Final answer
    x = 112,465.68

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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.