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Finding the Fourth Proportional to 103,802.66, 143,247.67 and 56,056.01

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Solution

The fourth proportional to 103,802.66, 143,247.67 and 56,056.01 is: 77,357.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,802.66 : 143,247.67 = 56,056.01 : x
  2. Step 2: Convert to fraction form
    103,802.66/143,247.67 = 56,056.01/x
  3. Step 3: Cross multiply
    103,802.66x = 143,247.67 × 56,056.01
  4. Step 4: Simplify right side
    103,802.66x = 8,029,891,825.48
  5. Step 5: Solve for x
    x = 8,029,891,825.48/103,802.66
  6. Step 6: Final answer
    x = 77,357.28

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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.