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Finding the Fourth Proportional to 147,315.76, 203,295.80 and 80,247.76

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Solution

The fourth proportional to 147,315.76, 203,295.80 and 80,247.76 is: 110,741.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,315.76 : 203,295.80 = 80,247.76 : x
  2. Step 2: Convert to fraction form
    147,315.76/203,295.80 = 80,247.76/x
  3. Step 3: Cross multiply
    147,315.76x = 203,295.80 × 80,247.76
  4. Step 4: Simplify right side
    147,315.76x = 16,314,032,567.41
  5. Step 5: Solve for x
    x = 16,314,032,567.41/147,315.76
  6. Step 6: Final answer
    x = 110,741.94

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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.