Home / 100,328.54-138,467.50-62,100.36

Finding the Fourth Proportional to 100,328.54, 138,467.50 and 62,100.36

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Solution

The fourth proportional to 100,328.54, 138,467.50 and 62,100.36 is: 85,707.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,328.54 : 138,467.50 = 62,100.36 : x
  2. Step 2: Convert to fraction form
    100,328.54/138,467.50 = 62,100.36/x
  3. Step 3: Cross multiply
    100,328.54x = 138,467.50 × 62,100.36
  4. Step 4: Simplify right side
    100,328.54x = 8,598,881,598.30
  5. Step 5: Solve for x
    x = 8,598,881,598.30/100,328.54
  6. Step 6: Final answer
    x = 85,707.23

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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.