Home / 191,220.51-286,819.83-72,903.81

Finding the Fourth Proportional to 191,220.51, 286,819.83 and 72,903.81

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Solution

The fourth proportional to 191,220.51, 286,819.83 and 72,903.81 is: 109,351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,220.51 : 286,819.83 = 72,903.81 : x
  2. Step 2: Convert to fraction form
    191,220.51/286,819.83 = 72,903.81/x
  3. Step 3: Cross multiply
    191,220.51x = 286,819.83 × 72,903.81
  4. Step 4: Simplify right side
    191,220.51x = 20,910,258,390.55
  5. Step 5: Solve for x
    x = 20,910,258,390.55/191,220.51
  6. Step 6: Final answer
    x = 109,351.55

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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.