Home / 236,254.60-326,019.36-128,823.76

Finding the Fourth Proportional to 236,254.60, 326,019.36 and 128,823.76

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Solution

The fourth proportional to 236,254.60, 326,019.36 and 128,823.76 is: 177,770.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,254.60 : 326,019.36 = 128,823.76 : x
  2. Step 2: Convert to fraction form
    236,254.60/326,019.36 = 128,823.76/x
  3. Step 3: Cross multiply
    236,254.60x = 326,019.36 × 128,823.76
  4. Step 4: Simplify right side
    236,254.60x = 41,999,039,787.99
  5. Step 5: Solve for x
    x = 41,999,039,787.99/236,254.60
  6. Step 6: Final answer
    x = 177,770.25

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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.