Home / 92,710.16-139,065.18-87,977

Finding the Fourth Proportional to 92,710.16, 139,065.18 and 87,977

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Solution

The fourth proportional to 92,710.16, 139,065.18 and 87,977 is: 131,965.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,710.16 : 139,065.18 = 87,977 : x
  2. Step 2: Convert to fraction form
    92,710.16/139,065.18 = 87,977/x
  3. Step 3: Cross multiply
    92,710.16x = 139,065.18 × 87,977
  4. Step 4: Simplify right side
    92,710.16x = 12,234,537,340.86
  5. Step 5: Solve for x
    x = 12,234,537,340.86/92,710.16
  6. Step 6: Final answer
    x = 131,965.44

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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.