Home / 128,261.41-177,001.33-70,119.34

Finding the Fourth Proportional to 128,261.41, 177,001.33 and 70,119.34

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Solution

The fourth proportional to 128,261.41, 177,001.33 and 70,119.34 is: 96,765.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,261.41 : 177,001.33 = 70,119.34 : x
  2. Step 2: Convert to fraction form
    128,261.41/177,001.33 = 70,119.34/x
  3. Step 3: Cross multiply
    128,261.41x = 177,001.33 × 70,119.34
  4. Step 4: Simplify right side
    128,261.41x = 12,411,216,438.72
  5. Step 5: Solve for x
    x = 12,411,216,438.72/128,261.41
  6. Step 6: Final answer
    x = 96,765.01

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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.