Home / 113,143.56-156,150.36-72,344.67

Finding the Fourth Proportional to 113,143.56, 156,150.36 and 72,344.67

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Solution

The fourth proportional to 113,143.56, 156,150.36 and 72,344.67 is: 99,843.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,143.56 : 156,150.36 = 72,344.67 : x
  2. Step 2: Convert to fraction form
    113,143.56/156,150.36 = 72,344.67/x
  3. Step 3: Cross multiply
    113,143.56x = 156,150.36 × 72,344.67
  4. Step 4: Simplify right side
    113,143.56x = 11,296,646,264.58
  5. Step 5: Solve for x
    x = 11,296,646,264.58/113,143.56
  6. Step 6: Final answer
    x = 99,843.48

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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.