Home / 152,686.20-210,659.22-88,147.20

Finding the Fourth Proportional to 152,686.20, 210,659.22 and 88,147.20

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Solution

The fourth proportional to 152,686.20, 210,659.22 and 88,147.20 is: 121,615.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,686.20 : 210,659.22 = 88,147.20 : x
  2. Step 2: Convert to fraction form
    152,686.20/210,659.22 = 88,147.20/x
  3. Step 3: Cross multiply
    152,686.20x = 210,659.22 × 88,147.20
  4. Step 4: Simplify right side
    152,686.20x = 18,569,020,397.18
  5. Step 5: Solve for x
    x = 18,569,020,397.18/152,686.20
  6. Step 6: Final answer
    x = 121,615.58

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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.