Home / 162,428.19-243,478.73-67,710.81

Finding the Fourth Proportional to 162,428.19, 243,478.73 and 67,710.81

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Solution

The fourth proportional to 162,428.19, 243,478.73 and 67,710.81 is: 101,498.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,428.19 : 243,478.73 = 67,710.81 : x
  2. Step 2: Convert to fraction form
    162,428.19/243,478.73 = 67,710.81/x
  3. Step 3: Cross multiply
    162,428.19x = 243,478.73 × 67,710.81
  4. Step 4: Simplify right side
    162,428.19x = 16,486,141,687.52
  5. Step 5: Solve for x
    x = 16,486,141,687.52/162,428.19
  6. Step 6: Final answer
    x = 101,498.03

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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.