Home / 116,878.16-161,279.96-69,122.18

Finding the Fourth Proportional to 116,878.16, 161,279.96 and 69,122.18

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Solution

The fourth proportional to 116,878.16, 161,279.96 and 69,122.18 is: 95,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,878.16 : 161,279.96 = 69,122.18 : x
  2. Step 2: Convert to fraction form
    116,878.16/161,279.96 = 69,122.18/x
  3. Step 3: Cross multiply
    116,878.16x = 161,279.96 × 69,122.18
  4. Step 4: Simplify right side
    116,878.16x = 11,148,022,425.51
  5. Step 5: Solve for x
    x = 11,148,022,425.51/116,878.16
  6. Step 6: Final answer
    x = 95,381.57

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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.