Home / 152,765.40-210,841.61-89,103.20

Finding the Fourth Proportional to 152,765.40, 210,841.61 and 89,103.20

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Solution

The fourth proportional to 152,765.40, 210,841.61 and 89,103.20 is: 122,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,765.40 : 210,841.61 = 89,103.20 : x
  2. Step 2: Convert to fraction form
    152,765.40/210,841.61 = 89,103.20/x
  3. Step 3: Cross multiply
    152,765.40x = 210,841.61 × 89,103.20
  4. Step 4: Simplify right side
    152,765.40x = 18,786,661,488.02
  5. Step 5: Solve for x
    x = 18,786,661,488.02/152,765.40
  6. Step 6: Final answer
    x = 122,977.20

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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.