Home / 190,929.90-286,308.45-85,694.70

Finding the Fourth Proportional to 190,929.90, 286,308.45 and 85,694.70

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Solution

The fourth proportional to 190,929.90, 286,308.45 and 85,694.70 is: 128,503.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,929.90 : 286,308.45 = 85,694.70 : x
  2. Step 2: Convert to fraction form
    190,929.90/286,308.45 = 85,694.70/x
  3. Step 3: Cross multiply
    190,929.90x = 286,308.45 × 85,694.70
  4. Step 4: Simplify right side
    190,929.90x = 24,535,116,730.22
  5. Step 5: Solve for x
    x = 24,535,116,730.22/190,929.90
  6. Step 6: Final answer
    x = 128,503.27

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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.