Home / 158,205.51-218,323.95-86,590.14

Finding the Fourth Proportional to 158,205.51, 218,323.95 and 86,590.14

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Solution

The fourth proportional to 158,205.51, 218,323.95 and 86,590.14 is: 119,494.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,205.51 : 218,323.95 = 86,590.14 : x
  2. Step 2: Convert to fraction form
    158,205.51/218,323.95 = 86,590.14/x
  3. Step 3: Cross multiply
    158,205.51x = 218,323.95 × 86,590.14
  4. Step 4: Simplify right side
    158,205.51x = 18,904,701,395.85
  5. Step 5: Solve for x
    x = 18,904,701,395.85/158,205.51
  6. Step 6: Final answer
    x = 119,494.58

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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.