Home / 190,935.51-286,168.05-78,545.58

Finding the Fourth Proportional to 190,935.51, 286,168.05 and 78,545.58

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Solution

The fourth proportional to 190,935.51, 286,168.05 and 78,545.58 is: 117,721.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,935.51 : 286,168.05 = 78,545.58 : x
  2. Step 2: Convert to fraction form
    190,935.51/286,168.05 = 78,545.58/x
  3. Step 3: Cross multiply
    190,935.51x = 286,168.05 × 78,545.58
  4. Step 4: Simplify right side
    190,935.51x = 22,477,235,464.72
  5. Step 5: Solve for x
    x = 22,477,235,464.72/190,935.51
  6. Step 6: Final answer
    x = 117,721.61

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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.