Home / 143,628.04-215,470.44-42,427.81

Finding the Fourth Proportional to 143,628.04, 215,470.44 and 42,427.81

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Solution

The fourth proportional to 143,628.04, 215,470.44 and 42,427.81 is: 63,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,628.04 : 215,470.44 = 42,427.81 : x
  2. Step 2: Convert to fraction form
    143,628.04/215,470.44 = 42,427.81/x
  3. Step 3: Cross multiply
    143,628.04x = 215,470.44 × 42,427.81
  4. Step 4: Simplify right side
    143,628.04x = 9,141,938,888.94
  5. Step 5: Solve for x
    x = 9,141,938,888.94/143,628.04
  6. Step 6: Final answer
    x = 63,650.10

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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.