Home / 210,880.50-316,320.48-68,725.55

Finding the Fourth Proportional to 210,880.50, 316,320.48 and 68,725.55

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Solution

The fourth proportional to 210,880.50, 316,320.48 and 68,725.55 is: 103,088.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,880.50 : 316,320.48 = 68,725.55 : x
  2. Step 2: Convert to fraction form
    210,880.50/316,320.48 = 68,725.55/x
  3. Step 3: Cross multiply
    210,880.50x = 316,320.48 × 68,725.55
  4. Step 4: Simplify right side
    210,880.50x = 21,739,297,382.66
  5. Step 5: Solve for x
    x = 21,739,297,382.66/210,880.50
  6. Step 6: Final answer
    x = 103,088.23

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1.5x scale

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.