Home / 106,265.12-159,434.53-47,142.20

Finding the Fourth Proportional to 106,265.12, 159,434.53 and 47,142.20

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Solution

The fourth proportional to 106,265.12, 159,434.53 and 47,142.20 is: 70,729.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,265.12 : 159,434.53 = 47,142.20 : x
  2. Step 2: Convert to fraction form
    106,265.12/159,434.53 = 47,142.20/x
  3. Step 3: Cross multiply
    106,265.12x = 159,434.53 × 47,142.20
  4. Step 4: Simplify right side
    106,265.12x = 7,516,094,780.90
  5. Step 5: Solve for x
    x = 7,516,094,780.90/106,265.12
  6. Step 6: Final answer
    x = 70,729.65

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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.