Home / 117,445.89-162,073.07-66,457.69

Finding the Fourth Proportional to 117,445.89, 162,073.07 and 66,457.69

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Solution

The fourth proportional to 117,445.89, 162,073.07 and 66,457.69 is: 91,710.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,445.89 : 162,073.07 = 66,457.69 : x
  2. Step 2: Convert to fraction form
    117,445.89/162,073.07 = 66,457.69/x
  3. Step 3: Cross multiply
    117,445.89x = 162,073.07 × 66,457.69
  4. Step 4: Simplify right side
    117,445.89x = 10,771,001,033.04
  5. Step 5: Solve for x
    x = 10,771,001,033.04/117,445.89
  6. Step 6: Final answer
    x = 91,710.33

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1.5x scale

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.