Home / 191,454.36-287,181.58-86,150.30

Finding the Fourth Proportional to 191,454.36, 287,181.58 and 86,150.30

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Solution

The fourth proportional to 191,454.36, 287,181.58 and 86,150.30 is: 129,225.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,454.36 : 287,181.58 = 86,150.30 : x
  2. Step 2: Convert to fraction form
    191,454.36/287,181.58 = 86,150.30/x
  3. Step 3: Cross multiply
    191,454.36x = 287,181.58 × 86,150.30
  4. Step 4: Simplify right side
    191,454.36x = 24,740,779,271.47
  5. Step 5: Solve for x
    x = 24,740,779,271.47/191,454.36
  6. Step 6: Final answer
    x = 129,225.47

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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.