Home / 117,318.47-161,897.37-66,330.32

Finding the Fourth Proportional to 117,318.47, 161,897.37 and 66,330.32

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Solution

The fourth proportional to 117,318.47, 161,897.37 and 66,330.32 is: 91,534.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,318.47 : 161,897.37 = 66,330.32 : x
  2. Step 2: Convert to fraction form
    117,318.47/161,897.37 = 66,330.32/x
  3. Step 3: Cross multiply
    117,318.47x = 161,897.37 × 66,330.32
  4. Step 4: Simplify right side
    117,318.47x = 10,738,704,120.34
  5. Step 5: Solve for x
    x = 10,738,704,120.34/117,318.47
  6. Step 6: Final answer
    x = 91,534.64

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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.