Home / 218,968.72-302,177.04-118,366.72

Finding the Fourth Proportional to 218,968.72, 302,177.04 and 118,366.72

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Solution

The fourth proportional to 218,968.72, 302,177.04 and 118,366.72 is: 163,346.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,968.72 : 302,177.04 = 118,366.72 : x
  2. Step 2: Convert to fraction form
    218,968.72/302,177.04 = 118,366.72/x
  3. Step 3: Cross multiply
    218,968.72x = 302,177.04 × 118,366.72
  4. Step 4: Simplify right side
    218,968.72x = 35,767,705,084.11
  5. Step 5: Solve for x
    x = 35,767,705,084.11/218,968.72
  6. Step 6: Final answer
    x = 163,346.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.