Home / 191,947.86-287,651.15-90,637.82

Finding the Fourth Proportional to 191,947.86, 287,651.15 and 90,637.82

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Solution

The fourth proportional to 191,947.86, 287,651.15 and 90,637.82 is: 135,828.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,947.86 : 287,651.15 = 90,637.82 : x
  2. Step 2: Convert to fraction form
    191,947.86/287,651.15 = 90,637.82/x
  3. Step 3: Cross multiply
    191,947.86x = 287,651.15 × 90,637.82
  4. Step 4: Simplify right side
    191,947.86x = 26,072,072,683.63
  5. Step 5: Solve for x
    x = 26,072,072,683.63/191,947.86
  6. Step 6: Final answer
    x = 135,828.93

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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.