Home / 117,609.03-162,189.81-90,708.93

Finding the Fourth Proportional to 117,609.03, 162,189.81 and 90,708.93

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Solution

The fourth proportional to 117,609.03, 162,189.81 and 90,708.93 is: 125,092.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,609.03 : 162,189.81 = 90,708.93 : x
  2. Step 2: Convert to fraction form
    117,609.03/162,189.81 = 90,708.93/x
  3. Step 3: Cross multiply
    117,609.03x = 162,189.81 × 90,708.93
  4. Step 4: Simplify right side
    117,609.03x = 14,712,064,122.00
  5. Step 5: Solve for x
    x = 14,712,064,122.00/117,609.03
  6. Step 6: Final answer
    x = 125,092.98

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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.