Home / 115,271.69-159,074.62-64,284.47

Finding the Fourth Proportional to 115,271.69, 159,074.62 and 64,284.47

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Solution

The fourth proportional to 115,271.69, 159,074.62 and 64,284.47 is: 88,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,271.69 : 159,074.62 = 64,284.47 : x
  2. Step 2: Convert to fraction form
    115,271.69/159,074.62 = 64,284.47/x
  3. Step 3: Cross multiply
    115,271.69x = 159,074.62 × 64,284.47
  4. Step 4: Simplify right side
    115,271.69x = 10,226,028,172.39
  5. Step 5: Solve for x
    x = 10,226,028,172.39/115,271.69
  6. Step 6: Final answer
    x = 88,712.40

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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.