Home / 127,415.37-191,130.35-38,671.77

Finding the Fourth Proportional to 127,415.37, 191,130.35 and 38,671.77

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Solution

The fourth proportional to 127,415.37, 191,130.35 and 38,671.77 is: 58,009.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,415.37 : 191,130.35 = 38,671.77 : x
  2. Step 2: Convert to fraction form
    127,415.37/191,130.35 = 38,671.77/x
  3. Step 3: Cross multiply
    127,415.37x = 191,130.35 × 38,671.77
  4. Step 4: Simplify right side
    127,415.37x = 7,391,348,741.86
  5. Step 5: Solve for x
    x = 7,391,348,741.86/127,415.37
  6. Step 6: Final answer
    x = 58,009.87

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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.