Home / 115,289.40-173,063.70-89,110.20

Finding the Fourth Proportional to 115,289.40, 173,063.70 and 89,110.20

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Solution

The fourth proportional to 115,289.40, 173,063.70 and 89,110.20 is: 133,765.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,289.40 : 173,063.70 = 89,110.20 : x
  2. Step 2: Convert to fraction form
    115,289.40/173,063.70 = 89,110.20/x
  3. Step 3: Cross multiply
    115,289.40x = 173,063.70 × 89,110.20
  4. Step 4: Simplify right side
    115,289.40x = 15,421,740,919.74
  5. Step 5: Solve for x
    x = 15,421,740,919.74/115,289.40
  6. Step 6: Final answer
    x = 133,765.47

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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.