Home / 191,929.69-287,928.41-65,540.32

Finding the Fourth Proportional to 191,929.69, 287,928.41 and 65,540.32

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Solution

The fourth proportional to 191,929.69, 287,928.41 and 65,540.32 is: 98,322.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,929.69 : 287,928.41 = 65,540.32 : x
  2. Step 2: Convert to fraction form
    191,929.69/287,928.41 = 65,540.32/x
  3. Step 3: Cross multiply
    191,929.69x = 287,928.41 × 65,540.32
  4. Step 4: Simplify right side
    191,929.69x = 18,870,920,128.49
  5. Step 5: Solve for x
    x = 18,870,920,128.49/191,929.69
  6. Step 6: Final answer
    x = 98,322.05

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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.