Home / 83,018.40-124,527.60-76,603.20

Finding the Fourth Proportional to 83,018.40, 124,527.60 and 76,603.20

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Solution

The fourth proportional to 83,018.40, 124,527.60 and 76,603.20 is: 114,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,018.40 : 124,527.60 = 76,603.20 : x
  2. Step 2: Convert to fraction form
    83,018.40/124,527.60 = 76,603.20/x
  3. Step 3: Cross multiply
    83,018.40x = 124,527.60 × 76,603.20
  4. Step 4: Simplify right side
    83,018.40x = 9,539,212,648.32
  5. Step 5: Solve for x
    x = 9,539,212,648.32/83,018.40
  6. Step 6: Final answer
    x = 114,904.80

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1.5x scale

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.