Home / 190,764.88-286,035-72,444.64

Finding the Fourth Proportional to 190,764.88, 286,035 and 72,444.64

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Solution

The fourth proportional to 190,764.88, 286,035 and 72,444.64 is: 108,624.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,764.88 : 286,035 = 72,444.64 : x
  2. Step 2: Convert to fraction form
    190,764.88/286,035 = 72,444.64/x
  3. Step 3: Cross multiply
    190,764.88x = 286,035 × 72,444.64
  4. Step 4: Simplify right side
    190,764.88x = 20,721,702,602.40
  5. Step 5: Solve for x
    x = 20,721,702,602.40/190,764.88
  6. Step 6: Final answer
    x = 108,624.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.