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Finding the Fourth Proportional to 185,503.08, 255,715.11 and 145,146.72

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Solution

The fourth proportional to 185,503.08, 255,715.11 and 145,146.72 is: 200,084.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,503.08 : 255,715.11 = 145,146.72 : x
  2. Step 2: Convert to fraction form
    185,503.08/255,715.11 = 145,146.72/x
  3. Step 3: Cross multiply
    185,503.08x = 255,715.11 × 145,146.72
  4. Step 4: Simplify right side
    185,503.08x = 37,116,209,470.94
  5. Step 5: Solve for x
    x = 37,116,209,470.94/185,503.08
  6. Step 6: Final answer
    x = 200,084.06

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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.