Home / 112,484.09-155,234.85-64,736.39

Finding the Fourth Proportional to 112,484.09, 155,234.85 and 64,736.39

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Solution

The fourth proportional to 112,484.09, 155,234.85 and 64,736.39 is: 89,340.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,484.09 : 155,234.85 = 64,736.39 : x
  2. Step 2: Convert to fraction form
    112,484.09/155,234.85 = 64,736.39/x
  3. Step 3: Cross multiply
    112,484.09x = 155,234.85 × 64,736.39
  4. Step 4: Simplify right side
    112,484.09x = 10,049,343,791.19
  5. Step 5: Solve for x
    x = 10,049,343,791.19/112,484.09
  6. Step 6: Final answer
    x = 89,340.14

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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.