Home / 137,825.16-190,184.52-77,402.40

Finding the Fourth Proportional to 137,825.16, 190,184.52 and 77,402.40

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Solution

The fourth proportional to 137,825.16, 190,184.52 and 77,402.40 is: 106,807.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,825.16 : 190,184.52 = 77,402.40 : x
  2. Step 2: Convert to fraction form
    137,825.16/190,184.52 = 77,402.40/x
  3. Step 3: Cross multiply
    137,825.16x = 190,184.52 × 77,402.40
  4. Step 4: Simplify right side
    137,825.16x = 14,720,738,290.85
  5. Step 5: Solve for x
    x = 14,720,738,290.85/137,825.16
  6. Step 6: Final answer
    x = 106,807.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.