Home / 127,008.11-190,392.95-42,709.32

Finding the Fourth Proportional to 127,008.11, 190,392.95 and 42,709.32

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Solution

The fourth proportional to 127,008.11, 190,392.95 and 42,709.32 is: 64,023.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,008.11 : 190,392.95 = 42,709.32 : x
  2. Step 2: Convert to fraction form
    127,008.11/190,392.95 = 42,709.32/x
  3. Step 3: Cross multiply
    127,008.11x = 190,392.95 × 42,709.32
  4. Step 4: Simplify right side
    127,008.11x = 8,131,552,475.33
  5. Step 5: Solve for x
    x = 8,131,552,475.33/127,008.11
  6. Step 6: Final answer
    x = 64,023.89

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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.