Home / 110,087.40-151,983.63-72,471

Finding the Fourth Proportional to 110,087.40, 151,983.63 and 72,471

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Solution

The fourth proportional to 110,087.40, 151,983.63 and 72,471 is: 100,051.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,087.40 : 151,983.63 = 72,471 : x
  2. Step 2: Convert to fraction form
    110,087.40/151,983.63 = 72,471/x
  3. Step 3: Cross multiply
    110,087.40x = 151,983.63 × 72,471
  4. Step 4: Simplify right side
    110,087.40x = 11,014,405,649.73
  5. Step 5: Solve for x
    x = 11,014,405,649.73/110,087.40
  6. Step 6: Final answer
    x = 100,051.47

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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.