Home / 105,400.36-157,756.80-57,296.60

Finding the Fourth Proportional to 105,400.36, 157,756.80 and 57,296.60

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Solution

The fourth proportional to 105,400.36, 157,756.80 and 57,296.60 is: 85,758.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,400.36 : 157,756.80 = 57,296.60 : x
  2. Step 2: Convert to fraction form
    105,400.36/157,756.80 = 57,296.60/x
  3. Step 3: Cross multiply
    105,400.36x = 157,756.80 × 57,296.60
  4. Step 4: Simplify right side
    105,400.36x = 9,038,928,266.88
  5. Step 5: Solve for x
    x = 9,038,928,266.88/105,400.36
  6. Step 6: Final answer
    x = 85,758.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.