Home / 191,880.12-287,645.94-67,153.08

Finding the Fourth Proportional to 191,880.12, 287,645.94 and 67,153.08

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Solution

The fourth proportional to 191,880.12, 287,645.94 and 67,153.08 is: 100,668.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,880.12 : 287,645.94 = 67,153.08 : x
  2. Step 2: Convert to fraction form
    191,880.12/287,645.94 = 67,153.08/x
  3. Step 3: Cross multiply
    191,880.12x = 287,645.94 × 67,153.08
  4. Step 4: Simplify right side
    191,880.12x = 19,316,310,820.50
  5. Step 5: Solve for x
    x = 19,316,310,820.50/191,880.12
  6. Step 6: Final answer
    x = 100,668.64

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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.