Home / 102,817.60-154,111.20-52,878.40

Finding the Fourth Proportional to 102,817.60, 154,111.20 and 52,878.40

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Solution

The fourth proportional to 102,817.60, 154,111.20 and 52,878.40 is: 79,258.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,817.60 : 154,111.20 = 52,878.40 : x
  2. Step 2: Convert to fraction form
    102,817.60/154,111.20 = 52,878.40/x
  3. Step 3: Cross multiply
    102,817.60x = 154,111.20 × 52,878.40
  4. Step 4: Simplify right side
    102,817.60x = 8,149,153,678.08
  5. Step 5: Solve for x
    x = 8,149,153,678.08/102,817.60
  6. Step 6: Final answer
    x = 79,258.35

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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.