Home / 104,870.60-144,721.84-57,123.53

Finding the Fourth Proportional to 104,870.60, 144,721.84 and 57,123.53

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Solution

The fourth proportional to 104,870.60, 144,721.84 and 57,123.53 is: 78,830.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,870.60 : 144,721.84 = 57,123.53 : x
  2. Step 2: Convert to fraction form
    104,870.60/144,721.84 = 57,123.53/x
  3. Step 3: Cross multiply
    104,870.60x = 144,721.84 × 57,123.53
  4. Step 4: Simplify right side
    104,870.60x = 8,267,022,152.29
  5. Step 5: Solve for x
    x = 8,267,022,152.29/104,870.60
  6. Step 6: Final answer
    x = 78,830.69

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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.