Home / 119,913.40-179,870.10-100,376.20

Finding the Fourth Proportional to 119,913.40, 179,870.10 and 100,376.20

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Solution

The fourth proportional to 119,913.40, 179,870.10 and 100,376.20 is: 150,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,913.40 : 179,870.10 = 100,376.20 : x
  2. Step 2: Convert to fraction form
    119,913.40/179,870.10 = 100,376.20/x
  3. Step 3: Cross multiply
    119,913.40x = 179,870.10 × 100,376.20
  4. Step 4: Simplify right side
    119,913.40x = 18,054,677,131.62
  5. Step 5: Solve for x
    x = 18,054,677,131.62/119,913.40
  6. Step 6: Final answer
    x = 150,564.30

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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.