Home / 103,802.30-143,247.17-56,055.65

Finding the Fourth Proportional to 103,802.30, 143,247.17 and 56,055.65

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Solution

The fourth proportional to 103,802.30, 143,247.17 and 56,055.65 is: 77,356.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,802.30 : 143,247.17 = 56,055.65 : x
  2. Step 2: Convert to fraction form
    103,802.30/143,247.17 = 56,055.65/x
  3. Step 3: Cross multiply
    103,802.30x = 143,247.17 × 56,055.65
  4. Step 4: Simplify right side
    103,802.30x = 8,029,812,570.09
  5. Step 5: Solve for x
    x = 8,029,812,570.09/103,802.30
  6. Step 6: Final answer
    x = 77,356.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.