Home / 115,913.80-173,870.70-56,787.40

Finding the Fourth Proportional to 115,913.80, 173,870.70 and 56,787.40

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Solution

The fourth proportional to 115,913.80, 173,870.70 and 56,787.40 is: 85,181.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,913.80 : 173,870.70 = 56,787.40 : x
  2. Step 2: Convert to fraction form
    115,913.80/173,870.70 = 56,787.40/x
  3. Step 3: Cross multiply
    115,913.80x = 173,870.70 × 56,787.40
  4. Step 4: Simplify right side
    115,913.80x = 9,873,664,989.18
  5. Step 5: Solve for x
    x = 9,873,664,989.18/115,913.80
  6. Step 6: Final answer
    x = 85,181.10

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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.