Home / 115,307.14-159,117.78-64,325.20

Finding the Fourth Proportional to 115,307.14, 159,117.78 and 64,325.20

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Solution

The fourth proportional to 115,307.14, 159,117.78 and 64,325.20 is: 88,765.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,307.14 : 159,117.78 = 64,325.20 : x
  2. Step 2: Convert to fraction form
    115,307.14/159,117.78 = 64,325.20/x
  3. Step 3: Cross multiply
    115,307.14x = 159,117.78 × 64,325.20
  4. Step 4: Simplify right side
    115,307.14x = 10,235,283,022.06
  5. Step 5: Solve for x
    x = 10,235,283,022.06/115,307.14
  6. Step 6: Final answer
    x = 88,765.39

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1.5x scale

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.