Home / 102,730.14-154,014.45-69,030.36

Finding the Fourth Proportional to 102,730.14, 154,014.45 and 69,030.36

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Solution

The fourth proportional to 102,730.14, 154,014.45 and 69,030.36 is: 103,491.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,730.14 : 154,014.45 = 69,030.36 : x
  2. Step 2: Convert to fraction form
    102,730.14/154,014.45 = 69,030.36/x
  3. Step 3: Cross multiply
    102,730.14x = 154,014.45 × 69,030.36
  4. Step 4: Simplify right side
    102,730.14x = 10,631,672,928.70
  5. Step 5: Solve for x
    x = 10,631,672,928.70/102,730.14
  6. Step 6: Final answer
    x = 103,491.27

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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.