Home / 115,097.10-158,858.50-77,349.48

Finding the Fourth Proportional to 115,097.10, 158,858.50 and 77,349.48

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Solution

The fourth proportional to 115,097.10, 158,858.50 and 77,349.48 is: 106,758.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,097.10 : 158,858.50 = 77,349.48 : x
  2. Step 2: Convert to fraction form
    115,097.10/158,858.50 = 77,349.48/x
  3. Step 3: Cross multiply
    115,097.10x = 158,858.50 × 77,349.48
  4. Step 4: Simplify right side
    115,097.10x = 12,287,622,368.58
  5. Step 5: Solve for x
    x = 12,287,622,368.58/115,097.10
  6. Step 6: Final answer
    x = 106,758.75

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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.