Home / 223,779.04-308,821.55-121,811.11

Finding the Fourth Proportional to 223,779.04, 308,821.55 and 121,811.11

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Solution

The fourth proportional to 223,779.04, 308,821.55 and 121,811.11 is: 168,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,779.04 : 308,821.55 = 121,811.11 : x
  2. Step 2: Convert to fraction form
    223,779.04/308,821.55 = 121,811.11/x
  3. Step 3: Cross multiply
    223,779.04x = 308,821.55 × 121,811.11
  4. Step 4: Simplify right side
    223,779.04x = 37,617,894,416.31
  5. Step 5: Solve for x
    x = 37,617,894,416.31/223,779.04
  6. Step 6: Final answer
    x = 168,102.85

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1.5x scale

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.