Home / 115,017.39-158,731.26-69,699.35

Finding the Fourth Proportional to 115,017.39, 158,731.26 and 69,699.35

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Solution

The fourth proportional to 115,017.39, 158,731.26 and 69,699.35 is: 96,189.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,017.39 : 158,731.26 = 69,699.35 : x
  2. Step 2: Convert to fraction form
    115,017.39/158,731.26 = 69,699.35/x
  3. Step 3: Cross multiply
    115,017.39x = 158,731.26 × 69,699.35
  4. Step 4: Simplify right side
    115,017.39x = 11,063,464,853.02
  5. Step 5: Solve for x
    x = 11,063,464,853.02/115,017.39
  6. Step 6: Final answer
    x = 96,189.50

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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.