Home / 236,343.76-326,155.40-128,916.10

Finding the Fourth Proportional to 236,343.76, 326,155.40 and 128,916.10

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Solution

The fourth proportional to 236,343.76, 326,155.40 and 128,916.10 is: 177,904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,343.76 : 326,155.40 = 128,916.10 : x
  2. Step 2: Convert to fraction form
    236,343.76/326,155.40 = 128,916.10/x
  3. Step 3: Cross multiply
    236,343.76x = 326,155.40 × 128,916.10
  4. Step 4: Simplify right side
    236,343.76x = 42,046,682,161.94
  5. Step 5: Solve for x
    x = 42,046,682,161.94/236,343.76
  6. Step 6: Final answer
    x = 177,904.77

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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.