Home / 236,394.47-326,225.14-128,966.76

Finding the Fourth Proportional to 236,394.47, 326,225.14 and 128,966.76

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Solution

The fourth proportional to 236,394.47, 326,225.14 and 128,966.76 is: 177,974.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,394.47 : 326,225.14 = 128,966.76 : x
  2. Step 2: Convert to fraction form
    236,394.47/326,225.14 = 128,966.76/x
  3. Step 3: Cross multiply
    236,394.47x = 326,225.14 × 128,966.76
  4. Step 4: Simplify right side
    236,394.47x = 42,072,199,013.93
  5. Step 5: Solve for x
    x = 42,072,199,013.93/236,394.47
  6. Step 6: Final answer
    x = 177,974.55

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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.