Home / 116,212.80-174,319.20-109,214.40

Finding the Fourth Proportional to 116,212.80, 174,319.20 and 109,214.40

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Solution

The fourth proportional to 116,212.80, 174,319.20 and 109,214.40 is: 163,821.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,212.80 : 174,319.20 = 109,214.40 : x
  2. Step 2: Convert to fraction form
    116,212.80/174,319.20 = 109,214.40/x
  3. Step 3: Cross multiply
    116,212.80x = 174,319.20 × 109,214.40
  4. Step 4: Simplify right side
    116,212.80x = 19,038,166,836.48
  5. Step 5: Solve for x
    x = 19,038,166,836.48/116,212.80
  6. Step 6: Final answer
    x = 163,821.60

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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.