Home / 145,164.52-200,325.54-81,500.84

Finding the Fourth Proportional to 145,164.52, 200,325.54 and 81,500.84

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Solution

The fourth proportional to 145,164.52, 200,325.54 and 81,500.84 is: 112,470.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,164.52 : 200,325.54 = 81,500.84 : x
  2. Step 2: Convert to fraction form
    145,164.52/200,325.54 = 81,500.84/x
  3. Step 3: Cross multiply
    145,164.52x = 200,325.54 × 81,500.84
  4. Step 4: Simplify right side
    145,164.52x = 16,326,699,783.45
  5. Step 5: Solve for x
    x = 16,326,699,783.45/145,164.52
  6. Step 6: Final answer
    x = 112,470.32

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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.