Home / 117,406.06-162,020.40-66,417.77

Finding the Fourth Proportional to 117,406.06, 162,020.40 and 66,417.77

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Solution

The fourth proportional to 117,406.06, 162,020.40 and 66,417.77 is: 91,656.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,406.06 : 162,020.40 = 66,417.77 : x
  2. Step 2: Convert to fraction form
    117,406.06/162,020.40 = 66,417.77/x
  3. Step 3: Cross multiply
    117,406.06x = 162,020.40 × 66,417.77
  4. Step 4: Simplify right side
    117,406.06x = 10,761,034,192.09
  5. Step 5: Solve for x
    x = 10,761,034,192.09/117,406.06
  6. Step 6: Final answer
    x = 91,656.55

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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.