Home / 152,343.54-210,236.22-87,777.12

Finding the Fourth Proportional to 152,343.54, 210,236.22 and 87,777.12

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Solution

The fourth proportional to 152,343.54, 210,236.22 and 87,777.12 is: 121,133.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,343.54 : 210,236.22 = 87,777.12 : x
  2. Step 2: Convert to fraction form
    152,343.54/210,236.22 = 87,777.12/x
  3. Step 3: Cross multiply
    152,343.54x = 210,236.22 × 87,777.12
  4. Step 4: Simplify right side
    152,343.54x = 18,453,929,911.29
  5. Step 5: Solve for x
    x = 18,453,929,911.29/152,343.54
  6. Step 6: Final answer
    x = 121,133.66

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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.