Home / 191,453.36-287,180.08-86,149.32

Finding the Fourth Proportional to 191,453.36, 287,180.08 and 86,149.32

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Solution

The fourth proportional to 191,453.36, 287,180.08 and 86,149.32 is: 129,224.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,453.36 : 287,180.08 = 86,149.32 : x
  2. Step 2: Convert to fraction form
    191,453.36/287,180.08 = 86,149.32/x
  3. Step 3: Cross multiply
    191,453.36x = 287,180.08 × 86,149.32
  4. Step 4: Simplify right side
    191,453.36x = 24,740,368,609.55
  5. Step 5: Solve for x
    x = 24,740,368,609.55/191,453.36
  6. Step 6: Final answer
    x = 129,224.00

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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.