Home / 115,659.90-159,601.88-70,331.64

Finding the Fourth Proportional to 115,659.90, 159,601.88 and 70,331.64

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Solution

The fourth proportional to 115,659.90, 159,601.88 and 70,331.64 is: 97,052.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,659.90 : 159,601.88 = 70,331.64 : x
  2. Step 2: Convert to fraction form
    115,659.90/159,601.88 = 70,331.64/x
  3. Step 3: Cross multiply
    115,659.90x = 159,601.88 × 70,331.64
  4. Step 4: Simplify right side
    115,659.90x = 11,225,061,967.48
  5. Step 5: Solve for x
    x = 11,225,061,967.48/115,659.90
  6. Step 6: Final answer
    x = 97,052.32

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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.