Home / 102,071.44-140,886.30-66,259.36

Finding the Fourth Proportional to 102,071.44, 140,886.30 and 66,259.36

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Solution

The fourth proportional to 102,071.44, 140,886.30 and 66,259.36 is: 91,455.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,071.44 : 140,886.30 = 66,259.36 : x
  2. Step 2: Convert to fraction form
    102,071.44/140,886.30 = 66,259.36/x
  3. Step 3: Cross multiply
    102,071.44x = 140,886.30 × 66,259.36
  4. Step 4: Simplify right side
    102,071.44x = 9,335,036,070.77
  5. Step 5: Solve for x
    x = 9,335,036,070.77/102,071.44
  6. Step 6: Final answer
    x = 91,455.91

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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.