Home / 147,546.94-203,630.54-90,219.86

Finding the Fourth Proportional to 147,546.94, 203,630.54 and 90,219.86

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Solution

The fourth proportional to 147,546.94, 203,630.54 and 90,219.86 is: 124,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,546.94 : 203,630.54 = 90,219.86 : x
  2. Step 2: Convert to fraction form
    147,546.94/203,630.54 = 90,219.86/x
  3. Step 3: Cross multiply
    147,546.94x = 203,630.54 × 90,219.86
  4. Step 4: Simplify right side
    147,546.94x = 18,371,518,810.52
  5. Step 5: Solve for x
    x = 18,371,518,810.52/147,546.94
  6. Step 6: Final answer
    x = 124,513.05

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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.