Home / 190,349.04-285,525.84-90,518.88

Finding the Fourth Proportional to 190,349.04, 285,525.84 and 90,518.88

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Solution

The fourth proportional to 190,349.04, 285,525.84 and 90,518.88 is: 135,779.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,349.04 : 285,525.84 = 90,518.88 : x
  2. Step 2: Convert to fraction form
    190,349.04/285,525.84 = 90,518.88/x
  3. Step 3: Cross multiply
    190,349.04x = 285,525.84 × 90,518.88
  4. Step 4: Simplify right side
    190,349.04x = 25,845,479,247.86
  5. Step 5: Solve for x
    x = 25,845,479,247.86/190,349.04
  6. Step 6: Final answer
    x = 135,779.40

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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.