Home / 137,783.84-190,135.22-76,534

Finding the Fourth Proportional to 137,783.84, 190,135.22 and 76,534

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Solution

The fourth proportional to 137,783.84, 190,135.22 and 76,534 is: 105,613.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,783.84 : 190,135.22 = 76,534 : x
  2. Step 2: Convert to fraction form
    137,783.84/190,135.22 = 76,534/x
  3. Step 3: Cross multiply
    137,783.84x = 190,135.22 × 76,534
  4. Step 4: Simplify right side
    137,783.84x = 14,551,808,927.48
  5. Step 5: Solve for x
    x = 14,551,808,927.48/137,783.84
  6. Step 6: Final answer
    x = 105,613.32

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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.