Home / 144,295.18-216,489.48-69,405.58

Finding the Fourth Proportional to 144,295.18, 216,489.48 and 69,405.58

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Solution

The fourth proportional to 144,295.18, 216,489.48 and 69,405.58 is: 104,130.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,295.18 : 216,489.48 = 69,405.58 : x
  2. Step 2: Convert to fraction form
    144,295.18/216,489.48 = 69,405.58/x
  3. Step 3: Cross multiply
    144,295.18x = 216,489.48 × 69,405.58
  4. Step 4: Simplify right side
    144,295.18x = 15,025,578,688.92
  5. Step 5: Solve for x
    x = 15,025,578,688.92/144,295.18
  6. Step 6: Final answer
    x = 104,130.84

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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.