Home / 107,330.85-148,014.59-78,232.77

Finding the Fourth Proportional to 107,330.85, 148,014.59 and 78,232.77

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Solution

The fourth proportional to 107,330.85, 148,014.59 and 78,232.77 is: 107,886.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,330.85 : 148,014.59 = 78,232.77 : x
  2. Step 2: Convert to fraction form
    107,330.85/148,014.59 = 78,232.77/x
  3. Step 3: Cross multiply
    107,330.85x = 148,014.59 × 78,232.77
  4. Step 4: Simplify right side
    107,330.85x = 11,579,590,984.95
  5. Step 5: Solve for x
    x = 11,579,590,984.95/107,330.85
  6. Step 6: Final answer
    x = 107,886.88

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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.