Home / 105,916.60-158,730.72-53,362.18

Finding the Fourth Proportional to 105,916.60, 158,730.72 and 53,362.18

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Solution

The fourth proportional to 105,916.60, 158,730.72 and 53,362.18 is: 79,970.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,916.60 : 158,730.72 = 53,362.18 : x
  2. Step 2: Convert to fraction form
    105,916.60/158,730.72 = 53,362.18/x
  3. Step 3: Cross multiply
    105,916.60x = 158,730.72 × 53,362.18
  4. Step 4: Simplify right side
    105,916.60x = 8,470,217,252.17
  5. Step 5: Solve for x
    x = 8,470,217,252.17/105,916.60
  6. Step 6: Final answer
    x = 79,970.63

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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.