Home / 115,403.60-173,105.40-97,688.90

Finding the Fourth Proportional to 115,403.60, 173,105.40 and 97,688.90

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Solution

The fourth proportional to 115,403.60, 173,105.40 and 97,688.90 is: 146,533.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,403.60 : 173,105.40 = 97,688.90 : x
  2. Step 2: Convert to fraction form
    115,403.60/173,105.40 = 97,688.90/x
  3. Step 3: Cross multiply
    115,403.60x = 173,105.40 × 97,688.90
  4. Step 4: Simplify right side
    115,403.60x = 16,910,476,110.06
  5. Step 5: Solve for x
    x = 16,910,476,110.06/115,403.60
  6. Step 6: Final answer
    x = 146,533.35

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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.