Home / 112,580.22-155,293.02-74,340.12

Finding the Fourth Proportional to 112,580.22, 155,293.02 and 74,340.12

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Solution

The fourth proportional to 112,580.22, 155,293.02 and 74,340.12 is: 102,544.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,580.22 : 155,293.02 = 74,340.12 : x
  2. Step 2: Convert to fraction form
    112,580.22/155,293.02 = 74,340.12/x
  3. Step 3: Cross multiply
    112,580.22x = 155,293.02 × 74,340.12
  4. Step 4: Simplify right side
    112,580.22x = 11,544,501,741.96
  5. Step 5: Solve for x
    x = 11,544,501,741.96/112,580.22
  6. Step 6: Final answer
    x = 102,544.67

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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.