Home / 127,999.56-176,638.15-70,639.41

Finding the Fourth Proportional to 127,999.56, 176,638.15 and 70,639.41

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Solution

The fourth proportional to 127,999.56, 176,638.15 and 70,639.41 is: 97,481.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,999.56 : 176,638.15 = 70,639.41 : x
  2. Step 2: Convert to fraction form
    127,999.56/176,638.15 = 70,639.41/x
  3. Step 3: Cross multiply
    127,999.56x = 176,638.15 × 70,639.41
  4. Step 4: Simplify right side
    127,999.56x = 12,477,614,699.49
  5. Step 5: Solve for x
    x = 12,477,614,699.49/127,999.56
  6. Step 6: Final answer
    x = 97,481.70

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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.