Home / 122,307.14-168,785.57-73,902.35

Finding the Fourth Proportional to 122,307.14, 168,785.57 and 73,902.35

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Solution

The fourth proportional to 122,307.14, 168,785.57 and 73,902.35 is: 101,986.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,307.14 : 168,785.57 = 73,902.35 : x
  2. Step 2: Convert to fraction form
    122,307.14/168,785.57 = 73,902.35/x
  3. Step 3: Cross multiply
    122,307.14x = 168,785.57 × 73,902.35
  4. Step 4: Simplify right side
    122,307.14x = 12,473,650,875.81
  5. Step 5: Solve for x
    x = 12,473,650,875.81/122,307.14
  6. Step 6: Final answer
    x = 101,986.28

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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.