Home / 190,939.86-286,423.63-57,830.50

Finding the Fourth Proportional to 190,939.86, 286,423.63 and 57,830.50

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Solution

The fourth proportional to 190,939.86, 286,423.63 and 57,830.50 is: 86,749.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,939.86 : 286,423.63 = 57,830.50 : x
  2. Step 2: Convert to fraction form
    190,939.86/286,423.63 = 57,830.50/x
  3. Step 3: Cross multiply
    190,939.86x = 286,423.63 × 57,830.50
  4. Step 4: Simplify right side
    190,939.86x = 16,564,020,874.08
  5. Step 5: Solve for x
    x = 16,564,020,874.08/190,939.86
  6. Step 6: Final answer
    x = 86,749.94

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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.