Home / 115,017.03-158,730.74-69,698.98

Finding the Fourth Proportional to 115,017.03, 158,730.74 and 69,698.98

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Solution

The fourth proportional to 115,017.03, 158,730.74 and 69,698.98 is: 96,188.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,017.03 : 158,730.74 = 69,698.98 : x
  2. Step 2: Convert to fraction form
    115,017.03/158,730.74 = 69,698.98/x
  3. Step 3: Cross multiply
    115,017.03x = 158,730.74 × 69,698.98
  4. Step 4: Simplify right side
    115,017.03x = 11,063,370,783.93
  5. Step 5: Solve for x
    x = 11,063,370,783.93/115,017.03
  6. Step 6: Final answer
    x = 96,188.98

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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.