Home / 236,521.10-354,828.38-86,762.78

Finding the Fourth Proportional to 236,521.10, 354,828.38 and 86,762.78

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Solution

The fourth proportional to 236,521.10, 354,828.38 and 86,762.78 is: 130,161.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,521.10 : 354,828.38 = 86,762.78 : x
  2. Step 2: Convert to fraction form
    236,521.10/354,828.38 = 86,762.78/x
  3. Step 3: Cross multiply
    236,521.10x = 354,828.38 × 86,762.78
  4. Step 4: Simplify right side
    236,521.10x = 30,785,894,463.74
  5. Step 5: Solve for x
    x = 30,785,894,463.74/236,521.10
  6. Step 6: Final answer
    x = 130,161.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.