Home / 121,811.34-182,457.75-69,193.74

Finding the Fourth Proportional to 121,811.34, 182,457.75 and 69,193.74

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Solution

The fourth proportional to 121,811.34, 182,457.75 and 69,193.74 is: 103,643.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,811.34 : 182,457.75 = 69,193.74 : x
  2. Step 2: Convert to fraction form
    121,811.34/182,457.75 = 69,193.74/x
  3. Step 3: Cross multiply
    121,811.34x = 182,457.75 × 69,193.74
  4. Step 4: Simplify right side
    121,811.34x = 12,624,934,114.49
  5. Step 5: Solve for x
    x = 12,624,934,114.49/121,811.34
  6. Step 6: Final answer
    x = 103,643.34

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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.