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Finding the Fourth Proportional to 186,038.80, 256,730.52 and 101,158

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Solution

The fourth proportional to 186,038.80, 256,730.52 and 101,158 is: 139,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,038.80 : 256,730.52 = 101,158 : x
  2. Step 2: Convert to fraction form
    186,038.80/256,730.52 = 101,158/x
  3. Step 3: Cross multiply
    186,038.80x = 256,730.52 × 101,158
  4. Step 4: Simplify right side
    186,038.80x = 25,970,345,942.16
  5. Step 5: Solve for x
    x = 25,970,345,942.16/186,038.80
  6. Step 6: Final answer
    x = 139,596.40

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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.