Home / 112,590.83-155,374.01-61,602.96

Finding the Fourth Proportional to 112,590.83, 155,374.01 and 61,602.96

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Solution

The fourth proportional to 112,590.83, 155,374.01 and 61,602.96 is: 85,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,590.83 : 155,374.01 = 61,602.96 : x
  2. Step 2: Convert to fraction form
    112,590.83/155,374.01 = 61,602.96/x
  3. Step 3: Cross multiply
    112,590.83x = 155,374.01 × 61,602.96
  4. Step 4: Simplify right side
    112,590.83x = 9,571,498,615.05
  5. Step 5: Solve for x
    x = 9,571,498,615.05/112,590.83
  6. Step 6: Final answer
    x = 85,011.36

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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.