Home / 115,064.08-158,706.63-76,804.33

Finding the Fourth Proportional to 115,064.08, 158,706.63 and 76,804.33

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Solution

The fourth proportional to 115,064.08, 158,706.63 and 76,804.33 is: 105,935.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,064.08 : 158,706.63 = 76,804.33 : x
  2. Step 2: Convert to fraction form
    115,064.08/158,706.63 = 76,804.33/x
  3. Step 3: Cross multiply
    115,064.08x = 158,706.63 × 76,804.33
  4. Step 4: Simplify right side
    115,064.08x = 12,189,356,697.27
  5. Step 5: Solve for x
    x = 12,189,356,697.27/115,064.08
  6. Step 6: Final answer
    x = 105,935.38

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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.