Home / 105,345,716.80-158,354,498.40-99,299,099.20

Finding the Fourth Proportional to 105,345,716.80, 158,354,498.40 and 99,299,099.20

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Solution

The fourth proportional to 105,345,716.80, 158,354,498.40 and 99,299,099.20 is: 149,265,290.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,345,716.80 : 158,354,498.40 = 99,299,099.20 : x
  2. Step 2: Convert to fraction form
    105,345,716.80/158,354,498.40 = 99,299,099.20/x
  3. Step 3: Cross multiply
    105,345,716.80x = 158,354,498.40 × 99,299,099.20
  4. Step 4: Simplify right side
    105,345,716.80x = 15,724,459,045,387,842
  5. Step 5: Solve for x
    x = 15,724,459,045,387,842/105,345,716.80
  6. Step 6: Final answer
    x = 149,265,290.73

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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.