Home / 98,009.98-135,329.94-75,313.18

Finding the Fourth Proportional to 98,009.98, 135,329.94 and 75,313.18

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Solution

The fourth proportional to 98,009.98, 135,329.94 and 75,313.18 is: 103,990.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,009.98 : 135,329.94 = 75,313.18 : x
  2. Step 2: Convert to fraction form
    98,009.98/135,329.94 = 75,313.18/x
  3. Step 3: Cross multiply
    98,009.98x = 135,329.94 × 75,313.18
  4. Step 4: Simplify right side
    98,009.98x = 10,192,128,130.61
  5. Step 5: Solve for x
    x = 10,192,128,130.61/98,009.98
  6. Step 6: Final answer
    x = 103,990.72

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1.5x scale

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.