Home / 194,543.40-291,815.10-111,445.80

Finding the Fourth Proportional to 194,543.40, 291,815.10 and 111,445.80

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Solution

The fourth proportional to 194,543.40, 291,815.10 and 111,445.80 is: 167,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,543.40 : 291,815.10 = 111,445.80 : x
  2. Step 2: Convert to fraction form
    194,543.40/291,815.10 = 111,445.80/x
  3. Step 3: Cross multiply
    194,543.40x = 291,815.10 × 111,445.80
  4. Step 4: Simplify right side
    194,543.40x = 32,521,567,271.58
  5. Step 5: Solve for x
    x = 32,521,567,271.58/194,543.40
  6. Step 6: Final answer
    x = 167,168.70

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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.