Home / 210,875.54-290,915.78-123,616.44

Finding the Fourth Proportional to 210,875.54, 290,915.78 and 123,616.44

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Solution

The fourth proportional to 210,875.54, 290,915.78 and 123,616.44 is: 170,536.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,875.54 : 290,915.78 = 123,616.44 : x
  2. Step 2: Convert to fraction form
    210,875.54/290,915.78 = 123,616.44/x
  3. Step 3: Cross multiply
    210,875.54x = 290,915.78 × 123,616.44
  4. Step 4: Simplify right side
    210,875.54x = 35,961,972,445.34
  5. Step 5: Solve for x
    x = 35,961,972,445.34/210,875.54
  6. Step 6: Final answer
    x = 170,536.48

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1.5x scale

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.