Home / 190,666.64-286,000.31-78,268.52

Finding the Fourth Proportional to 190,666.64, 286,000.31 and 78,268.52

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Solution

The fourth proportional to 190,666.64, 286,000.31 and 78,268.52 is: 117,402.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,666.64 : 286,000.31 = 78,268.52 : x
  2. Step 2: Convert to fraction form
    190,666.64/286,000.31 = 78,268.52/x
  3. Step 3: Cross multiply
    190,666.64x = 286,000.31 × 78,268.52
  4. Step 4: Simplify right side
    190,666.64x = 22,384,820,983.24
  5. Step 5: Solve for x
    x = 22,384,820,983.24/190,666.64
  6. Step 6: Final answer
    x = 117,402.92

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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.