Home / 191,918.43-287,877.65-186,669.63

Finding the Fourth Proportional to 191,918.43, 287,877.65 and 186,669.63

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Solution

The fourth proportional to 191,918.43, 287,877.65 and 186,669.63 is: 280,004.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,918.43 : 287,877.65 = 186,669.63 : x
  2. Step 2: Convert to fraction form
    191,918.43/287,877.65 = 186,669.63/x
  3. Step 3: Cross multiply
    191,918.43x = 287,877.65 × 186,669.63
  4. Step 4: Simplify right side
    191,918.43x = 53,738,013,477.42
  5. Step 5: Solve for x
    x = 53,738,013,477.42/191,918.43
  6. Step 6: Final answer
    x = 280,004.45

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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.