Home / 145,184.94-200,320.16-84,721.07

Finding the Fourth Proportional to 145,184.94, 200,320.16 and 84,721.07

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Solution

The fourth proportional to 145,184.94, 200,320.16 and 84,721.07 is: 116,894.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,184.94 : 200,320.16 = 84,721.07 : x
  2. Step 2: Convert to fraction form
    145,184.94/200,320.16 = 84,721.07/x
  3. Step 3: Cross multiply
    145,184.94x = 200,320.16 × 84,721.07
  4. Step 4: Simplify right side
    145,184.94x = 16,971,336,872.57
  5. Step 5: Solve for x
    x = 16,971,336,872.57/145,184.94
  6. Step 6: Final answer
    x = 116,894.61

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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.