Home / 127,998.30-176,636.42-70,638.16

Finding the Fourth Proportional to 127,998.30, 176,636.42 and 70,638.16

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Solution

The fourth proportional to 127,998.30, 176,636.42 and 70,638.16 is: 97,479.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,998.30 : 176,636.42 = 70,638.16 : x
  2. Step 2: Convert to fraction form
    127,998.30/176,636.42 = 70,638.16/x
  3. Step 3: Cross multiply
    127,998.30x = 176,636.42 × 70,638.16
  4. Step 4: Simplify right side
    127,998.30x = 12,477,271,697.79
  5. Step 5: Solve for x
    x = 12,477,271,697.79/127,998.30
  6. Step 6: Final answer
    x = 97,479.98

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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.