Home / 189,947.12-262,178.84-118,284.80

Finding the Fourth Proportional to 189,947.12, 262,178.84 and 118,284.80

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Solution

The fourth proportional to 189,947.12, 262,178.84 and 118,284.80 is: 163,265.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,947.12 : 262,178.84 = 118,284.80 : x
  2. Step 2: Convert to fraction form
    189,947.12/262,178.84 = 118,284.80/x
  3. Step 3: Cross multiply
    189,947.12x = 262,178.84 × 118,284.80
  4. Step 4: Simplify right side
    189,947.12x = 31,011,770,638.45
  5. Step 5: Solve for x
    x = 31,011,770,638.45/189,947.12
  6. Step 6: Final answer
    x = 163,265.29

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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.