Home / 191,821.15-264,643.77-111,204.28

Finding the Fourth Proportional to 191,821.15, 264,643.77 and 111,204.28

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Solution

The fourth proportional to 191,821.15, 264,643.77 and 111,204.28 is: 153,421.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,821.15 : 264,643.77 = 111,204.28 : x
  2. Step 2: Convert to fraction form
    191,821.15/264,643.77 = 111,204.28/x
  3. Step 3: Cross multiply
    191,821.15x = 264,643.77 × 111,204.28
  4. Step 4: Simplify right side
    191,821.15x = 29,429,519,899.34
  5. Step 5: Solve for x
    x = 29,429,519,899.34/191,821.15
  6. Step 6: Final answer
    x = 153,421.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.