Home / 191,509.11-287,167.14-111,573.45

Finding the Fourth Proportional to 191,509.11, 287,167.14 and 111,573.45

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Solution

The fourth proportional to 191,509.11, 287,167.14 and 111,573.45 is: 167,303.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,509.11 : 287,167.14 = 111,573.45 : x
  2. Step 2: Convert to fraction form
    191,509.11/287,167.14 = 111,573.45/x
  3. Step 3: Cross multiply
    191,509.11x = 287,167.14 × 111,573.45
  4. Step 4: Simplify right side
    191,509.11x = 32,040,228,536.43
  5. Step 5: Solve for x
    x = 32,040,228,536.43/191,509.11
  6. Step 6: Final answer
    x = 167,303.94

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1.5x scale

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.