Home / 102,913.53-154,210.88-71,384.89

Finding the Fourth Proportional to 102,913.53, 154,210.88 and 71,384.89

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Solution

The fourth proportional to 102,913.53, 154,210.88 and 71,384.89 is: 106,966.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,913.53 : 154,210.88 = 71,384.89 : x
  2. Step 2: Convert to fraction form
    102,913.53/154,210.88 = 71,384.89/x
  3. Step 3: Cross multiply
    102,913.53x = 154,210.88 × 71,384.89
  4. Step 4: Simplify right side
    102,913.53x = 11,008,326,705.60
  5. Step 5: Solve for x
    x = 11,008,326,705.60/102,913.53
  6. Step 6: Final answer
    x = 106,966.76

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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.