Home / 127,581.36-191,372.16-105,298.80

Finding the Fourth Proportional to 127,581.36, 191,372.16 and 105,298.80

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Solution

The fourth proportional to 127,581.36, 191,372.16 and 105,298.80 is: 157,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,581.36 : 191,372.16 = 105,298.80 : x
  2. Step 2: Convert to fraction form
    127,581.36/191,372.16 = 105,298.80/x
  3. Step 3: Cross multiply
    127,581.36x = 191,372.16 × 105,298.80
  4. Step 4: Simplify right side
    127,581.36x = 20,151,258,801.41
  5. Step 5: Solve for x
    x = 20,151,258,801.41/127,581.36
  6. Step 6: Final answer
    x = 157,948.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.