Home / 187,285.08-280,920.18-103,211.94

Finding the Fourth Proportional to 187,285.08, 280,920.18 and 103,211.94

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Solution

The fourth proportional to 187,285.08, 280,920.18 and 103,211.94 is: 154,813.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,285.08 : 280,920.18 = 103,211.94 : x
  2. Step 2: Convert to fraction form
    187,285.08/280,920.18 = 103,211.94/x
  3. Step 3: Cross multiply
    187,285.08x = 280,920.18 × 103,211.94
  4. Step 4: Simplify right side
    187,285.08x = 28,994,316,762.95
  5. Step 5: Solve for x
    x = 28,994,316,762.95/187,285.08
  6. Step 6: Final answer
    x = 154,813.81

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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.