Home / 132,928.74-183,395.34-85,208.40

Finding the Fourth Proportional to 132,928.74, 183,395.34 and 85,208.40

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Solution

The fourth proportional to 132,928.74, 183,395.34 and 85,208.40 is: 117,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,928.74 : 183,395.34 = 85,208.40 : x
  2. Step 2: Convert to fraction form
    132,928.74/183,395.34 = 85,208.40/x
  3. Step 3: Cross multiply
    132,928.74x = 183,395.34 × 85,208.40
  4. Step 4: Simplify right side
    132,928.74x = 15,626,823,488.86
  5. Step 5: Solve for x
    x = 15,626,823,488.86/132,928.74
  6. Step 6: Final answer
    x = 117,557.90

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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.