Home / 112,374.96-155,082.16-64,628.35

Finding the Fourth Proportional to 112,374.96, 155,082.16 and 64,628.35

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Solution

The fourth proportional to 112,374.96, 155,082.16 and 64,628.35 is: 89,189.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,374.96 : 155,082.16 = 64,628.35 : x
  2. Step 2: Convert to fraction form
    112,374.96/155,082.16 = 64,628.35/x
  3. Step 3: Cross multiply
    112,374.96x = 155,082.16 × 64,628.35
  4. Step 4: Simplify right side
    112,374.96x = 10,022,704,115.24
  5. Step 5: Solve for x
    x = 10,022,704,115.24/112,374.96
  6. Step 6: Final answer
    x = 89,189.83

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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.