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Finding the Fourth Proportional to 147,492, 203,538.96 and 80,424.16

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Solution

The fourth proportional to 147,492, 203,538.96 and 80,424.16 is: 110,985.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,492 : 203,538.96 = 80,424.16 : x
  2. Step 2: Convert to fraction form
    147,492/203,538.96 = 80,424.16/x
  3. Step 3: Cross multiply
    147,492x = 203,538.96 × 80,424.16
  4. Step 4: Simplify right side
    147,492x = 16,369,449,885.27
  5. Step 5: Solve for x
    x = 16,369,449,885.27/147,492
  6. Step 6: Final answer
    x = 110,985.34

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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.