Home / 135,369.84-186,812-74,946.08

Finding the Fourth Proportional to 135,369.84, 186,812 and 74,946.08

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Solution

The fourth proportional to 135,369.84, 186,812 and 74,946.08 is: 103,426.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,369.84 : 186,812 = 74,946.08 : x
  2. Step 2: Convert to fraction form
    135,369.84/186,812 = 74,946.08/x
  3. Step 3: Cross multiply
    135,369.84x = 186,812 × 74,946.08
  4. Step 4: Simplify right side
    135,369.84x = 14,000,827,096.96
  5. Step 5: Solve for x
    x = 14,000,827,096.96/135,369.84
  6. Step 6: Final answer
    x = 103,426.49

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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.