Home / 152,017.18-209,780.61-84,037.02

Finding the Fourth Proportional to 152,017.18, 209,780.61 and 84,037.02

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Solution

The fourth proportional to 152,017.18, 209,780.61 and 84,037.02 is: 115,969.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,017.18 : 209,780.61 = 84,037.02 : x
  2. Step 2: Convert to fraction form
    152,017.18/209,780.61 = 84,037.02/x
  3. Step 3: Cross multiply
    152,017.18x = 209,780.61 × 84,037.02
  4. Step 4: Simplify right side
    152,017.18x = 17,629,337,318.18
  5. Step 5: Solve for x
    x = 17,629,337,318.18/152,017.18
  6. Step 6: Final answer
    x = 115,969.37

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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.