Home / 140,284.48-210,476.16-87,632.32

Finding the Fourth Proportional to 140,284.48, 210,476.16 and 87,632.32

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Solution

The fourth proportional to 140,284.48, 210,476.16 and 87,632.32 is: 131,479.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,284.48 : 210,476.16 = 87,632.32 : x
  2. Step 2: Convert to fraction form
    140,284.48/210,476.16 = 87,632.32/x
  3. Step 3: Cross multiply
    140,284.48x = 210,476.16 × 87,632.32
  4. Step 4: Simplify right side
    140,284.48x = 18,444,514,205.49
  5. Step 5: Solve for x
    x = 18,444,514,205.49/140,284.48
  6. Step 6: Final answer
    x = 131,479.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.