Home / 126,807.78-174,987.74-70,215.50

Finding the Fourth Proportional to 126,807.78, 174,987.74 and 70,215.50

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Solution

The fourth proportional to 126,807.78, 174,987.74 and 70,215.50 is: 96,893.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,807.78 : 174,987.74 = 70,215.50 : x
  2. Step 2: Convert to fraction form
    126,807.78/174,987.74 = 70,215.50/x
  3. Step 3: Cross multiply
    126,807.78x = 174,987.74 × 70,215.50
  4. Step 4: Simplify right side
    126,807.78x = 12,286,851,657.97
  5. Step 5: Solve for x
    x = 12,286,851,657.97/126,807.78
  6. Step 6: Final answer
    x = 96,893.52

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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.