Home / 145,432.48-200,694.40-80,900.94

Finding the Fourth Proportional to 145,432.48, 200,694.40 and 80,900.94

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Solution

The fourth proportional to 145,432.48, 200,694.40 and 80,900.94 is: 111,641.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,432.48 : 200,694.40 = 80,900.94 : x
  2. Step 2: Convert to fraction form
    145,432.48/200,694.40 = 80,900.94/x
  3. Step 3: Cross multiply
    145,432.48x = 200,694.40 × 80,900.94
  4. Step 4: Simplify right side
    145,432.48x = 16,236,365,612.74
  5. Step 5: Solve for x
    x = 16,236,365,612.74/145,432.48
  6. Step 6: Final answer
    x = 111,641.95

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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.