Home / 113,106.70-156,140.44-65,350.82

Finding the Fourth Proportional to 113,106.70, 156,140.44 and 65,350.82

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Solution

The fourth proportional to 113,106.70, 156,140.44 and 65,350.82 is: 90,214.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,106.70 : 156,140.44 = 65,350.82 : x
  2. Step 2: Convert to fraction form
    113,106.70/156,140.44 = 65,350.82/x
  3. Step 3: Cross multiply
    113,106.70x = 156,140.44 × 65,350.82
  4. Step 4: Simplify right side
    113,106.70x = 10,203,905,008.46
  5. Step 5: Solve for x
    x = 10,203,905,008.46/113,106.70
  6. Step 6: Final answer
    x = 90,214.86

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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.