Home / 211,026.30-316,545.09-68,880.21

Finding the Fourth Proportional to 211,026.30, 316,545.09 and 68,880.21

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Solution

The fourth proportional to 211,026.30, 316,545.09 and 68,880.21 is: 103,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,026.30 : 316,545.09 = 68,880.21 : x
  2. Step 2: Convert to fraction form
    211,026.30/316,545.09 = 68,880.21/x
  3. Step 3: Cross multiply
    211,026.30x = 316,545.09 × 68,880.21
  4. Step 4: Simplify right side
    211,026.30x = 21,803,692,531.97
  5. Step 5: Solve for x
    x = 21,803,692,531.97/211,026.30
  6. Step 6: Final answer
    x = 103,322.16

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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.