Home / 191,450.32-287,175.56-86,146.28

Finding the Fourth Proportional to 191,450.32, 287,175.56 and 86,146.28

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Solution

The fourth proportional to 191,450.32, 287,175.56 and 86,146.28 is: 129,219.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,450.32 : 287,175.56 = 86,146.28 : x
  2. Step 2: Convert to fraction form
    191,450.32/287,175.56 = 86,146.28/x
  3. Step 3: Cross multiply
    191,450.32x = 287,175.56 × 86,146.28
  4. Step 4: Simplify right side
    191,450.32x = 24,739,106,200.92
  5. Step 5: Solve for x
    x = 24,739,106,200.92/191,450.32
  6. Step 6: Final answer
    x = 129,219.46

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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.