Home / 127,506.48-191,130.56-64,135.12

Finding the Fourth Proportional to 127,506.48, 191,130.56 and 64,135.12

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Solution

The fourth proportional to 127,506.48, 191,130.56 and 64,135.12 is: 96,137.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,506.48 : 191,130.56 = 64,135.12 : x
  2. Step 2: Convert to fraction form
    127,506.48/191,130.56 = 64,135.12/x
  3. Step 3: Cross multiply
    127,506.48x = 191,130.56 × 64,135.12
  4. Step 4: Simplify right side
    127,506.48x = 12,258,181,401.27
  5. Step 5: Solve for x
    x = 12,258,181,401.27/127,506.48
  6. Step 6: Final answer
    x = 96,137.71

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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.