Home / 137,941.18-190,364.46-77,511.64

Finding the Fourth Proportional to 137,941.18, 190,364.46 and 77,511.64

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Solution

The fourth proportional to 137,941.18, 190,364.46 and 77,511.64 is: 106,969.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,941.18 : 190,364.46 = 77,511.64 : x
  2. Step 2: Convert to fraction form
    137,941.18/190,364.46 = 77,511.64/x
  3. Step 3: Cross multiply
    137,941.18x = 190,364.46 × 77,511.64
  4. Step 4: Simplify right side
    137,941.18x = 14,755,461,492.31
  5. Step 5: Solve for x
    x = 14,755,461,492.31/137,941.18
  6. Step 6: Final answer
    x = 106,969.23

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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.