Home / 140,264.07-210,707.51-86,995.42

Finding the Fourth Proportional to 140,264.07, 210,707.51 and 86,995.42

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Solution

The fourth proportional to 140,264.07, 210,707.51 and 86,995.42 is: 130,686.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,264.07 : 210,707.51 = 86,995.42 : x
  2. Step 2: Convert to fraction form
    140,264.07/210,707.51 = 86,995.42/x
  3. Step 3: Cross multiply
    140,264.07x = 210,707.51 × 86,995.42
  4. Step 4: Simplify right side
    140,264.07x = 18,330,587,367.86
  5. Step 5: Solve for x
    x = 18,330,587,367.86/140,264.07
  6. Step 6: Final answer
    x = 130,686.27

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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.