Home / 190,700.62-286,041.64-70,780.92

Finding the Fourth Proportional to 190,700.62, 286,041.64 and 70,780.92

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Solution

The fourth proportional to 190,700.62, 286,041.64 and 70,780.92 is: 106,167.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,700.62 : 286,041.64 = 70,780.92 : x
  2. Step 2: Convert to fraction form
    190,700.62/286,041.64 = 70,780.92/x
  3. Step 3: Cross multiply
    190,700.62x = 286,041.64 × 70,780.92
  4. Step 4: Simplify right side
    190,700.62x = 20,246,290,437.51
  5. Step 5: Solve for x
    x = 20,246,290,437.51/190,700.62
  6. Step 6: Final answer
    x = 106,167.93

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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.