Home / 92,835.20-139,252.80-89,206.40

Finding the Fourth Proportional to 92,835.20, 139,252.80 and 89,206.40

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Solution

The fourth proportional to 92,835.20, 139,252.80 and 89,206.40 is: 133,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,835.20 : 139,252.80 = 89,206.40 : x
  2. Step 2: Convert to fraction form
    92,835.20/139,252.80 = 89,206.40/x
  3. Step 3: Cross multiply
    92,835.20x = 139,252.80 × 89,206.40
  4. Step 4: Simplify right side
    92,835.20x = 12,422,240,977.92
  5. Step 5: Solve for x
    x = 12,422,240,977.92/92,835.20
  6. Step 6: Final answer
    x = 133,809.60

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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.