Home / 158,239.52-218,370.82-86,623.93

Finding the Fourth Proportional to 158,239.52, 218,370.82 and 86,623.93

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Solution

The fourth proportional to 158,239.52, 218,370.82 and 86,623.93 is: 119,541.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,239.52 : 218,370.82 = 86,623.93 : x
  2. Step 2: Convert to fraction form
    158,239.52/218,370.82 = 86,623.93/x
  3. Step 3: Cross multiply
    158,239.52x = 218,370.82 × 86,623.93
  4. Step 4: Simplify right side
    158,239.52x = 18,916,137,533.87
  5. Step 5: Solve for x
    x = 18,916,137,533.87/158,239.52
  6. Step 6: Final answer
    x = 119,541.17

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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.