Home / 99,457.41-137,239.05-59,172.87

Finding the Fourth Proportional to 99,457.41, 137,239.05 and 59,172.87

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Solution

The fourth proportional to 99,457.41, 137,239.05 and 59,172.87 is: 81,651.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,457.41 : 137,239.05 = 59,172.87 : x
  2. Step 2: Convert to fraction form
    99,457.41/137,239.05 = 59,172.87/x
  3. Step 3: Cross multiply
    99,457.41x = 137,239.05 × 59,172.87
  4. Step 4: Simplify right side
    99,457.41x = 8,120,828,464.57
  5. Step 5: Solve for x
    x = 8,120,828,464.57/99,457.41
  6. Step 6: Final answer
    x = 81,651.32

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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.