Home / 130,603.16-195,904.77-86,219.52

Finding the Fourth Proportional to 130,603.16, 195,904.77 and 86,219.52

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Solution

The fourth proportional to 130,603.16, 195,904.77 and 86,219.52 is: 129,329.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,603.16 : 195,904.77 = 86,219.52 : x
  2. Step 2: Convert to fraction form
    130,603.16/195,904.77 = 86,219.52/x
  3. Step 3: Cross multiply
    130,603.16x = 195,904.77 × 86,219.52
  4. Step 4: Simplify right side
    130,603.16x = 16,890,815,235.11
  5. Step 5: Solve for x
    x = 16,890,815,235.11/130,603.16
  6. Step 6: Final answer
    x = 129,329.30

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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.