Home / 115,094.09-158,854.36-77,346.47

Finding the Fourth Proportional to 115,094.09, 158,854.36 and 77,346.47

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Solution

The fourth proportional to 115,094.09, 158,854.36 and 77,346.47 is: 106,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,094.09 : 158,854.36 = 77,346.47 : x
  2. Step 2: Convert to fraction form
    115,094.09/158,854.36 = 77,346.47/x
  3. Step 3: Cross multiply
    115,094.09x = 158,854.36 × 77,346.47
  4. Step 4: Simplify right side
    115,094.09x = 12,286,824,193.88
  5. Step 5: Solve for x
    x = 12,286,824,193.88/115,094.09
  6. Step 6: Final answer
    x = 106,754.60

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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.