Home / 116,515.60-174,427.80-77,117.20

Finding the Fourth Proportional to 116,515.60, 174,427.80 and 77,117.20

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Solution

The fourth proportional to 116,515.60, 174,427.80 and 77,117.20 is: 115,447.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,515.60 : 174,427.80 = 77,117.20 : x
  2. Step 2: Convert to fraction form
    116,515.60/174,427.80 = 77,117.20/x
  3. Step 3: Cross multiply
    116,515.60x = 174,427.80 × 77,117.20
  4. Step 4: Simplify right side
    116,515.60x = 13,451,383,538.16
  5. Step 5: Solve for x
    x = 13,451,383,538.16/116,515.60
  6. Step 6: Final answer
    x = 115,447.06

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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.