Home / 104,346.06-143,883.45-77,538.30

Finding the Fourth Proportional to 104,346.06, 143,883.45 and 77,538.30

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Solution

The fourth proportional to 104,346.06, 143,883.45 and 77,538.30 is: 106,918.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,346.06 : 143,883.45 = 77,538.30 : x
  2. Step 2: Convert to fraction form
    104,346.06/143,883.45 = 77,538.30/x
  3. Step 3: Cross multiply
    104,346.06x = 143,883.45 × 77,538.30
  4. Step 4: Simplify right side
    104,346.06x = 11,156,478,111.14
  5. Step 5: Solve for x
    x = 11,156,478,111.14/104,346.06
  6. Step 6: Final answer
    x = 106,918.06

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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.