Home / 236,401.19-326,232.93-128,970.46

Finding the Fourth Proportional to 236,401.19, 326,232.93 and 128,970.46

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Solution

The fourth proportional to 236,401.19, 326,232.93 and 128,970.46 is: 177,978.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,401.19 : 326,232.93 = 128,970.46 : x
  2. Step 2: Convert to fraction form
    236,401.19/326,232.93 = 128,970.46/x
  3. Step 3: Cross multiply
    236,401.19x = 326,232.93 × 128,970.46
  4. Step 4: Simplify right side
    236,401.19x = 42,074,411,049.25
  5. Step 5: Solve for x
    x = 42,074,411,049.25/236,401.19
  6. Step 6: Final answer
    x = 177,978.85

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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.