Home / 155,258.40-232,887.60-145,416.90

Finding the Fourth Proportional to 155,258.40, 232,887.60 and 145,416.90

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Solution

The fourth proportional to 155,258.40, 232,887.60 and 145,416.90 is: 218,125.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,258.40 : 232,887.60 = 145,416.90 : x
  2. Step 2: Convert to fraction form
    155,258.40/232,887.60 = 145,416.90/x
  3. Step 3: Cross multiply
    155,258.40x = 232,887.60 × 145,416.90
  4. Step 4: Simplify right side
    155,258.40x = 33,865,792,840.44
  5. Step 5: Solve for x
    x = 33,865,792,840.44/155,258.40
  6. Step 6: Final answer
    x = 218,125.35

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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.