Home / 110,528.32-152,580-65,190.88

Finding the Fourth Proportional to 110,528.32, 152,580 and 65,190.88

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Solution

The fourth proportional to 110,528.32, 152,580 and 65,190.88 is: 89,993.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,528.32 : 152,580 = 65,190.88 : x
  2. Step 2: Convert to fraction form
    110,528.32/152,580 = 65,190.88/x
  3. Step 3: Cross multiply
    110,528.32x = 152,580 × 65,190.88
  4. Step 4: Simplify right side
    110,528.32x = 9,946,824,470.40
  5. Step 5: Solve for x
    x = 9,946,824,470.40/110,528.32
  6. Step 6: Final answer
    x = 89,993.45

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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.