Home / 115,344.39-159,075.86-75,043.45

Finding the Fourth Proportional to 115,344.39, 159,075.86 and 75,043.45

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Solution

The fourth proportional to 115,344.39, 159,075.86 and 75,043.45 is: 103,495.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,344.39 : 159,075.86 = 75,043.45 : x
  2. Step 2: Convert to fraction form
    115,344.39/159,075.86 = 75,043.45/x
  3. Step 3: Cross multiply
    115,344.39x = 159,075.86 × 75,043.45
  4. Step 4: Simplify right side
    115,344.39x = 11,937,601,346.12
  5. Step 5: Solve for x
    x = 11,937,601,346.12/115,344.39
  6. Step 6: Final answer
    x = 103,495.29

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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.