Home / 113,947.30-170,790.63-71,272.12

Finding the Fourth Proportional to 113,947.30, 170,790.63 and 71,272.12

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Solution

The fourth proportional to 113,947.30, 170,790.63 and 71,272.12 is: 106,826.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,947.30 : 170,790.63 = 71,272.12 : x
  2. Step 2: Convert to fraction form
    113,947.30/170,790.63 = 71,272.12/x
  3. Step 3: Cross multiply
    113,947.30x = 170,790.63 × 71,272.12
  4. Step 4: Simplify right side
    113,947.30x = 12,172,610,276.24
  5. Step 5: Solve for x
    x = 12,172,610,276.24/113,947.30
  6. Step 6: Final answer
    x = 106,826.67

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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.