Home / 127,038.03-190,565.01-42,791.28

Finding the Fourth Proportional to 127,038.03, 190,565.01 and 42,791.28

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Solution

The fourth proportional to 127,038.03, 190,565.01 and 42,791.28 is: 64,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,038.03 : 190,565.01 = 42,791.28 : x
  2. Step 2: Convert to fraction form
    127,038.03/190,565.01 = 42,791.28/x
  3. Step 3: Cross multiply
    127,038.03x = 190,565.01 × 42,791.28
  4. Step 4: Simplify right side
    127,038.03x = 8,154,520,701.11
  5. Step 5: Solve for x
    x = 8,154,520,701.11/127,038.03
  6. Step 6: Final answer
    x = 64,189.60

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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.