Home / 190,947.18-286,462.08-72,620.76

Finding the Fourth Proportional to 190,947.18, 286,462.08 and 72,620.76

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Solution

The fourth proportional to 190,947.18, 286,462.08 and 72,620.76 is: 108,946.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,947.18 : 286,462.08 = 72,620.76 : x
  2. Step 2: Convert to fraction form
    190,947.18/286,462.08 = 72,620.76/x
  3. Step 3: Cross multiply
    190,947.18x = 286,462.08 × 72,620.76
  4. Step 4: Simplify right side
    190,947.18x = 20,803,093,960.78
  5. Step 5: Solve for x
    x = 20,803,093,960.78/190,947.18
  6. Step 6: Final answer
    x = 108,946.85

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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.