Home / 156,947.20-235,075.20-136,211.20

Finding the Fourth Proportional to 156,947.20, 235,075.20 and 136,211.20

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Solution

The fourth proportional to 156,947.20, 235,075.20 and 136,211.20 is: 204,016.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,947.20 : 235,075.20 = 136,211.20 : x
  2. Step 2: Convert to fraction form
    156,947.20/235,075.20 = 136,211.20/x
  3. Step 3: Cross multiply
    156,947.20x = 235,075.20 × 136,211.20
  4. Step 4: Simplify right side
    156,947.20x = 32,019,875,082.24
  5. Step 5: Solve for x
    x = 32,019,875,082.24/156,947.20
  6. Step 6: Final answer
    x = 204,016.86

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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.