Home / 236,291.04-326,071.80-128,859.12

Finding the Fourth Proportional to 236,291.04, 326,071.80 and 128,859.12

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Solution

The fourth proportional to 236,291.04, 326,071.80 and 128,859.12 is: 177,820.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,291.04 : 326,071.80 = 128,859.12 : x
  2. Step 2: Convert to fraction form
    236,291.04/326,071.80 = 128,859.12/x
  3. Step 3: Cross multiply
    236,291.04x = 326,071.80 × 128,859.12
  4. Step 4: Simplify right side
    236,291.04x = 42,017,325,204.82
  5. Step 5: Solve for x
    x = 42,017,325,204.82/236,291.04
  6. Step 6: Final answer
    x = 177,820.22

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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.