Home / 223,631.23-308,612.46-121,657.63

Finding the Fourth Proportional to 223,631.23, 308,612.46 and 121,657.63

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Solution

The fourth proportional to 223,631.23, 308,612.46 and 121,657.63 is: 167,888.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,631.23 : 308,612.46 = 121,657.63 : x
  2. Step 2: Convert to fraction form
    223,631.23/308,612.46 = 121,657.63/x
  3. Step 3: Cross multiply
    223,631.23x = 308,612.46 × 121,657.63
  4. Step 4: Simplify right side
    223,631.23x = 37,545,060,472.07
  5. Step 5: Solve for x
    x = 37,545,060,472.07/223,631.23
  6. Step 6: Final answer
    x = 167,888.27

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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.