Home / 123,723.60-170,746.80-70,010.88

Finding the Fourth Proportional to 123,723.60, 170,746.80 and 70,010.88

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Solution

The fourth proportional to 123,723.60, 170,746.80 and 70,010.88 is: 96,619.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,723.60 : 170,746.80 = 70,010.88 : x
  2. Step 2: Convert to fraction form
    123,723.60/170,746.80 = 70,010.88/x
  3. Step 3: Cross multiply
    123,723.60x = 170,746.80 × 70,010.88
  4. Step 4: Simplify right side
    123,723.60x = 11,954,133,725.18
  5. Step 5: Solve for x
    x = 11,954,133,725.18/123,723.60
  6. Step 6: Final answer
    x = 96,619.67

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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.