Home / 117,457.49-162,225.90-77,350.52

Finding the Fourth Proportional to 117,457.49, 162,225.90 and 77,350.52

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Solution

The fourth proportional to 117,457.49, 162,225.90 and 77,350.52 is: 106,832.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,457.49 : 162,225.90 = 77,350.52 : x
  2. Step 2: Convert to fraction form
    117,457.49/162,225.90 = 77,350.52/x
  3. Step 3: Cross multiply
    117,457.49x = 162,225.90 × 77,350.52
  4. Step 4: Simplify right side
    117,457.49x = 12,548,256,911.34
  5. Step 5: Solve for x
    x = 12,548,256,911.34/117,457.49
  6. Step 6: Final answer
    x = 106,832.33

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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.