Home / 191,340.81-287,030.67-51,109.29

Finding the Fourth Proportional to 191,340.81, 287,030.67 and 51,109.29

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Solution

The fourth proportional to 191,340.81, 287,030.67 and 51,109.29 is: 76,669.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,340.81 : 287,030.67 = 51,109.29 : x
  2. Step 2: Convert to fraction form
    191,340.81/287,030.67 = 51,109.29/x
  3. Step 3: Cross multiply
    191,340.81x = 287,030.67 × 51,109.29
  4. Step 4: Simplify right side
    191,340.81x = 14,669,933,751.92
  5. Step 5: Solve for x
    x = 14,669,933,751.92/191,340.81
  6. Step 6: Final answer
    x = 76,669.13

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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.