Home / 106,782.12-147,362.40-59,038.56

Finding the Fourth Proportional to 106,782.12, 147,362.40 and 59,038.56

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Solution

The fourth proportional to 106,782.12, 147,362.40 and 59,038.56 is: 81,474.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,782.12 : 147,362.40 = 59,038.56 : x
  2. Step 2: Convert to fraction form
    106,782.12/147,362.40 = 59,038.56/x
  3. Step 3: Cross multiply
    106,782.12x = 147,362.40 × 59,038.56
  4. Step 4: Simplify right side
    106,782.12x = 8,700,063,894.14
  5. Step 5: Solve for x
    x = 8,700,063,894.14/106,782.12
  6. Step 6: Final answer
    x = 81,474.91

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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.