Home / 236,395.47-326,226.52-128,967.76

Finding the Fourth Proportional to 236,395.47, 326,226.52 and 128,967.76

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Solution

The fourth proportional to 236,395.47, 326,226.52 and 128,967.76 is: 177,975.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,395.47 : 326,226.52 = 128,967.76 : x
  2. Step 2: Convert to fraction form
    236,395.47/326,226.52 = 128,967.76/x
  3. Step 3: Cross multiply
    236,395.47x = 326,226.52 × 128,967.76
  4. Step 4: Simplify right side
    236,395.47x = 42,072,703,537.00
  5. Step 5: Solve for x
    x = 42,072,703,537.00/236,395.47
  6. Step 6: Final answer
    x = 177,975.93

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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.