Home / 189,947.02-262,113.06-105,065.50

Finding the Fourth Proportional to 189,947.02, 262,113.06 and 105,065.50

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Solution

The fourth proportional to 189,947.02, 262,113.06 and 105,065.50 is: 144,982.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,947.02 : 262,113.06 = 105,065.50 : x
  2. Step 2: Convert to fraction form
    189,947.02/262,113.06 = 105,065.50/x
  3. Step 3: Cross multiply
    189,947.02x = 262,113.06 × 105,065.50
  4. Step 4: Simplify right side
    189,947.02x = 27,539,039,705.43
  5. Step 5: Solve for x
    x = 27,539,039,705.43/189,947.02
  6. Step 6: Final answer
    x = 144,982.74

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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.