Home / 153,667.65-211,982.31-102,664.08

Finding the Fourth Proportional to 153,667.65, 211,982.31 and 102,664.08

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Solution

The fourth proportional to 153,667.65, 211,982.31 and 102,664.08 is: 141,623.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,667.65 : 211,982.31 = 102,664.08 : x
  2. Step 2: Convert to fraction form
    153,667.65/211,982.31 = 102,664.08/x
  3. Step 3: Cross multiply
    153,667.65x = 211,982.31 × 102,664.08
  4. Step 4: Simplify right side
    153,667.65x = 21,762,968,832.42
  5. Step 5: Solve for x
    x = 21,762,968,832.42/153,667.65
  6. Step 6: Final answer
    x = 141,623.62

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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.