Home / 223,510.05-308,442.20-121,535.57

Finding the Fourth Proportional to 223,510.05, 308,442.20 and 121,535.57

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Solution

The fourth proportional to 223,510.05, 308,442.20 and 121,535.57 is: 167,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,510.05 : 308,442.20 = 121,535.57 : x
  2. Step 2: Convert to fraction form
    223,510.05/308,442.20 = 121,535.57/x
  3. Step 3: Cross multiply
    223,510.05x = 308,442.20 × 121,535.57
  4. Step 4: Simplify right side
    223,510.05x = 37,486,699,664.00
  5. Step 5: Solve for x
    x = 37,486,699,664.00/223,510.05
  6. Step 6: Final answer
    x = 167,718.18

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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.