Home / 126,702,905.12-174,850,008.96-68,756,153.12

Finding the Fourth Proportional to 126,702,905.12, 174,850,008.96 and 68,756,153.12

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Solution

The fourth proportional to 126,702,905.12, 174,850,008.96 and 68,756,153.12 is: 94,883,491.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,702,905.12 : 174,850,008.96 = 68,756,153.12 : x
  2. Step 2: Convert to fraction form
    126,702,905.12/174,850,008.96 = 68,756,153.12/x
  3. Step 3: Cross multiply
    126,702,905.12x = 174,850,008.96 × 68,756,153.12
  4. Step 4: Simplify right side
    126,702,905.12x = 12,022,013,989,087,134
  5. Step 5: Solve for x
    x = 12,022,013,989,087,134/126,702,905.12
  6. Step 6: Final answer
    x = 94,883,491.25

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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.