Home / 132,931.56-183,399.64-85,211.24

Finding the Fourth Proportional to 132,931.56, 183,399.64 and 85,211.24

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Solution

The fourth proportional to 132,931.56, 183,399.64 and 85,211.24 is: 117,562.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,931.56 : 183,399.64 = 85,211.24 : x
  2. Step 2: Convert to fraction form
    132,931.56/183,399.64 = 85,211.24/x
  3. Step 3: Cross multiply
    132,931.56x = 183,399.64 × 85,211.24
  4. Step 4: Simplify right side
    132,931.56x = 15,627,710,739.95
  5. Step 5: Solve for x
    x = 15,627,710,739.95/132,931.56
  6. Step 6: Final answer
    x = 117,562.08

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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.