Home / 136,401.02-188,239.26-75,971.68

Finding the Fourth Proportional to 136,401.02, 188,239.26 and 75,971.68

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Solution

The fourth proportional to 136,401.02, 188,239.26 and 75,971.68 is: 104,844.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,401.02 : 188,239.26 = 75,971.68 : x
  2. Step 2: Convert to fraction form
    136,401.02/188,239.26 = 75,971.68/x
  3. Step 3: Cross multiply
    136,401.02x = 188,239.26 × 75,971.68
  4. Step 4: Simplify right side
    136,401.02x = 14,300,852,824.16
  5. Step 5: Solve for x
    x = 14,300,852,824.16/136,401.02
  6. Step 6: Final answer
    x = 104,844.18

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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.