Home / 191,913.15-287,585.41-77,922.34

Finding the Fourth Proportional to 191,913.15, 287,585.41 and 77,922.34

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Solution

The fourth proportional to 191,913.15, 287,585.41 and 77,922.34 is: 116,768.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,913.15 : 287,585.41 = 77,922.34 : x
  2. Step 2: Convert to fraction form
    191,913.15/287,585.41 = 77,922.34/x
  3. Step 3: Cross multiply
    191,913.15x = 287,585.41 × 77,922.34
  4. Step 4: Simplify right side
    191,913.15x = 22,409,328,097.06
  5. Step 5: Solve for x
    x = 22,409,328,097.06/191,913.15
  6. Step 6: Final answer
    x = 116,768.07

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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.