Home / 115,537.40-173,435.70-89,358.20

Finding the Fourth Proportional to 115,537.40, 173,435.70 and 89,358.20

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Solution

The fourth proportional to 115,537.40, 173,435.70 and 89,358.20 is: 134,137.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,537.40 : 173,435.70 = 89,358.20 : x
  2. Step 2: Convert to fraction form
    115,537.40/173,435.70 = 89,358.20/x
  3. Step 3: Cross multiply
    115,537.40x = 173,435.70 × 89,358.20
  4. Step 4: Simplify right side
    115,537.40x = 15,497,901,967.74
  5. Step 5: Solve for x
    x = 15,497,901,967.74/115,537.40
  6. Step 6: Final answer
    x = 134,137.53

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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.