Home / 190,345.92-285,430.24-85,165.76

Finding the Fourth Proportional to 190,345.92, 285,430.24 and 85,165.76

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Solution

The fourth proportional to 190,345.92, 285,430.24 and 85,165.76 is: 127,708.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,345.92 : 285,430.24 = 85,165.76 : x
  2. Step 2: Convert to fraction form
    190,345.92/285,430.24 = 85,165.76/x
  3. Step 3: Cross multiply
    190,345.92x = 285,430.24 × 85,165.76
  4. Step 4: Simplify right side
    190,345.92x = 24,308,883,316.58
  5. Step 5: Solve for x
    x = 24,308,883,316.58/190,345.92
  6. Step 6: Final answer
    x = 127,708.98

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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.