Home / 207,929.80-286,987.59-131,400.19

Finding the Fourth Proportional to 207,929.80, 286,987.59 and 131,400.19

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Solution

The fourth proportional to 207,929.80, 286,987.59 and 131,400.19 is: 181,360.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,929.80 : 286,987.59 = 131,400.19 : x
  2. Step 2: Convert to fraction form
    207,929.80/286,987.59 = 131,400.19/x
  3. Step 3: Cross multiply
    207,929.80x = 286,987.59 × 131,400.19
  4. Step 4: Simplify right side
    207,929.80x = 37,710,223,853.64
  5. Step 5: Solve for x
    x = 37,710,223,853.64/207,929.80
  6. Step 6: Final answer
    x = 181,360.36

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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.