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Finding the Fourth Proportional to 134,463.34, 201,630.68 and 78,319.46

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Solution

The fourth proportional to 134,463.34, 201,630.68 and 78,319.46 is: 117,441.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,463.34 : 201,630.68 = 78,319.46 : x
  2. Step 2: Convert to fraction form
    134,463.34/201,630.68 = 78,319.46/x
  3. Step 3: Cross multiply
    134,463.34x = 201,630.68 × 78,319.46
  4. Step 4: Simplify right side
    134,463.34x = 15,791,606,383.21
  5. Step 5: Solve for x
    x = 15,791,606,383.21/134,463.34
  6. Step 6: Final answer
    x = 117,441.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.