Home / 103,373.06-142,707.96-88,426.28

Finding the Fourth Proportional to 103,373.06, 142,707.96 and 88,426.28

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Solution

The fourth proportional to 103,373.06, 142,707.96 and 88,426.28 is: 122,073.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,373.06 : 142,707.96 = 88,426.28 : x
  2. Step 2: Convert to fraction form
    103,373.06/142,707.96 = 88,426.28/x
  3. Step 3: Cross multiply
    103,373.06x = 142,707.96 × 88,426.28
  4. Step 4: Simplify right side
    103,373.06x = 12,619,134,029.19
  5. Step 5: Solve for x
    x = 12,619,134,029.19/103,373.06
  6. Step 6: Final answer
    x = 122,073.72

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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.