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Finding the Fourth Proportional to 172,955.40, 259,433.10 and 60,762.30

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Solution

The fourth proportional to 172,955.40, 259,433.10 and 60,762.30 is: 91,143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,955.40 : 259,433.10 = 60,762.30 : x
  2. Step 2: Convert to fraction form
    172,955.40/259,433.10 = 60,762.30/x
  3. Step 3: Cross multiply
    172,955.40x = 259,433.10 × 60,762.30
  4. Step 4: Simplify right side
    172,955.40x = 15,763,751,852.13
  5. Step 5: Solve for x
    x = 15,763,751,852.13/172,955.40
  6. Step 6: Final answer
    x = 91,143.45

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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.