Home / 95,432.40-143,148.60-86,684.40

Finding the Fourth Proportional to 95,432.40, 143,148.60 and 86,684.40

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Solution

The fourth proportional to 95,432.40, 143,148.60 and 86,684.40 is: 130,026.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,432.40 : 143,148.60 = 86,684.40 : x
  2. Step 2: Convert to fraction form
    95,432.40/143,148.60 = 86,684.40/x
  3. Step 3: Cross multiply
    95,432.40x = 143,148.60 × 86,684.40
  4. Step 4: Simplify right side
    95,432.40x = 12,408,750,501.84
  5. Step 5: Solve for x
    x = 12,408,750,501.84/95,432.40
  6. Step 6: Final answer
    x = 130,026.60

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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.