Home / 117,762.90-162,519.66-66,777.72

Finding the Fourth Proportional to 117,762.90, 162,519.66 and 66,777.72

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Solution

The fourth proportional to 117,762.90, 162,519.66 and 66,777.72 is: 92,157.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,762.90 : 162,519.66 = 66,777.72 : x
  2. Step 2: Convert to fraction form
    117,762.90/162,519.66 = 66,777.72/x
  3. Step 3: Cross multiply
    117,762.90x = 162,519.66 × 66,777.72
  4. Step 4: Simplify right side
    117,762.90x = 10,852,692,349.98
  5. Step 5: Solve for x
    x = 10,852,692,349.98/117,762.90
  6. Step 6: Final answer
    x = 92,157.14

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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.