Home / 191,417.19-287,190.72-84,786.81

Finding the Fourth Proportional to 191,417.19, 287,190.72 and 84,786.81

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Solution

The fourth proportional to 191,417.19, 287,190.72 and 84,786.81 is: 127,208.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,417.19 : 287,190.72 = 84,786.81 : x
  2. Step 2: Convert to fraction form
    191,417.19/287,190.72 = 84,786.81/x
  3. Step 3: Cross multiply
    191,417.19x = 287,190.72 × 84,786.81
  4. Step 4: Simplify right side
    191,417.19x = 24,349,985,010.40
  5. Step 5: Solve for x
    x = 24,349,985,010.40/191,417.19
  6. Step 6: Final answer
    x = 127,208.98

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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.