Home / 103,517.06-143,108.28-102,569.81

Finding the Fourth Proportional to 103,517.06, 143,108.28 and 102,569.81

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Solution

The fourth proportional to 103,517.06, 143,108.28 and 102,569.81 is: 141,798.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,517.06 : 143,108.28 = 102,569.81 : x
  2. Step 2: Convert to fraction form
    103,517.06/143,108.28 = 102,569.81/x
  3. Step 3: Cross multiply
    103,517.06x = 143,108.28 × 102,569.81
  4. Step 4: Simplify right side
    103,517.06x = 14,678,588,373.49
  5. Step 5: Solve for x
    x = 14,678,588,373.49/103,517.06
  6. Step 6: Final answer
    x = 141,798.74

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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.