Home / 112,374.93-155,082.12-64,628.32

Finding the Fourth Proportional to 112,374.93, 155,082.12 and 64,628.32

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Solution

The fourth proportional to 112,374.93, 155,082.12 and 64,628.32 is: 89,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,374.93 : 155,082.12 = 64,628.32 : x
  2. Step 2: Convert to fraction form
    112,374.93/155,082.12 = 64,628.32/x
  3. Step 3: Cross multiply
    112,374.93x = 155,082.12 × 64,628.32
  4. Step 4: Simplify right side
    112,374.93x = 10,022,695,779.09
  5. Step 5: Solve for x
    x = 10,022,695,779.09/112,374.93
  6. Step 6: Final answer
    x = 89,189.78

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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.