Home / 190,874.39-286,301.05-78,526.17

Finding the Fourth Proportional to 190,874.39, 286,301.05 and 78,526.17

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Solution

The fourth proportional to 190,874.39, 286,301.05 and 78,526.17 is: 117,784.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,874.39 : 286,301.05 = 78,526.17 : x
  2. Step 2: Convert to fraction form
    190,874.39/286,301.05 = 78,526.17/x
  3. Step 3: Cross multiply
    190,874.39x = 286,301.05 × 78,526.17
  4. Step 4: Simplify right side
    190,874.39x = 22,482,124,727.16
  5. Step 5: Solve for x
    x = 22,482,124,727.16/190,874.39
  6. Step 6: Final answer
    x = 117,784.92

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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.