Home / 120,087.12-179,881.53-70,015.35

Finding the Fourth Proportional to 120,087.12, 179,881.53 and 70,015.35

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Solution

The fourth proportional to 120,087.12, 179,881.53 and 70,015.35 is: 104,877.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,087.12 : 179,881.53 = 70,015.35 : x
  2. Step 2: Convert to fraction form
    120,087.12/179,881.53 = 70,015.35/x
  3. Step 3: Cross multiply
    120,087.12x = 179,881.53 × 70,015.35
  4. Step 4: Simplify right side
    120,087.12x = 12,594,468,281.49
  5. Step 5: Solve for x
    x = 12,594,468,281.49/120,087.12
  6. Step 6: Final answer
    x = 104,877.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.