Home / 112,572.87-168,859.27-42,435.78

Finding the Fourth Proportional to 112,572.87, 168,859.27 and 42,435.78

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Solution

The fourth proportional to 112,572.87, 168,859.27 and 42,435.78 is: 63,653.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,572.87 : 168,859.27 = 42,435.78 : x
  2. Step 2: Convert to fraction form
    112,572.87/168,859.27 = 42,435.78/x
  3. Step 3: Cross multiply
    112,572.87x = 168,859.27 × 42,435.78
  4. Step 4: Simplify right side
    112,572.87x = 7,165,674,832.68
  5. Step 5: Solve for x
    x = 7,165,674,832.68/112,572.87
  6. Step 6: Final answer
    x = 63,653.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.