Home / 115,877.60-173,816.40-90,994.40

Finding the Fourth Proportional to 115,877.60, 173,816.40 and 90,994.40

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Solution

The fourth proportional to 115,877.60, 173,816.40 and 90,994.40 is: 136,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,877.60 : 173,816.40 = 90,994.40 : x
  2. Step 2: Convert to fraction form
    115,877.60/173,816.40 = 90,994.40/x
  3. Step 3: Cross multiply
    115,877.60x = 173,816.40 × 90,994.40
  4. Step 4: Simplify right side
    115,877.60x = 15,816,319,028.16
  5. Step 5: Solve for x
    x = 15,816,319,028.16/115,877.60
  6. Step 6: Final answer
    x = 136,491.60

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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.