Home / 106,916.50-147,374.79-84,219.56

Finding the Fourth Proportional to 106,916.50, 147,374.79 and 84,219.56

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Solution

The fourth proportional to 106,916.50, 147,374.79 and 84,219.56 is: 116,089.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,916.50 : 147,374.79 = 84,219.56 : x
  2. Step 2: Convert to fraction form
    106,916.50/147,374.79 = 84,219.56/x
  3. Step 3: Cross multiply
    106,916.50x = 147,374.79 × 84,219.56
  4. Step 4: Simplify right side
    106,916.50x = 12,411,839,968.89
  5. Step 5: Solve for x
    x = 12,411,839,968.89/106,916.50
  6. Step 6: Final answer
    x = 116,089.10

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1.5x scale

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.