Home / 223,737.13-308,771.02-128,258.18

Finding the Fourth Proportional to 223,737.13, 308,771.02 and 128,258.18

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Solution

The fourth proportional to 223,737.13, 308,771.02 and 128,258.18 is: 177,004.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,737.13 : 308,771.02 = 128,258.18 : x
  2. Step 2: Convert to fraction form
    223,737.13/308,771.02 = 128,258.18/x
  3. Step 3: Cross multiply
    223,737.13x = 308,771.02 × 128,258.18
  4. Step 4: Simplify right side
    223,737.13x = 39,602,407,969.37
  5. Step 5: Solve for x
    x = 39,602,407,969.37/223,737.13
  6. Step 6: Final answer
    x = 177,004.18

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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.