Home / 117,477.88-162,117.06-66,489.70

Finding the Fourth Proportional to 117,477.88, 162,117.06 and 66,489.70

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Solution

The fourth proportional to 117,477.88, 162,117.06 and 66,489.70 is: 91,754.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,477.88 : 162,117.06 = 66,489.70 : x
  2. Step 2: Convert to fraction form
    117,477.88/162,117.06 = 66,489.70/x
  3. Step 3: Cross multiply
    117,477.88x = 162,117.06 × 66,489.70
  4. Step 4: Simplify right side
    117,477.88x = 10,779,114,684.28
  5. Step 5: Solve for x
    x = 10,779,114,684.28/117,477.88
  6. Step 6: Final answer
    x = 91,754.42

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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.