Home / 112,475.70-168,778.35-42,405.30

Finding the Fourth Proportional to 112,475.70, 168,778.35 and 42,405.30

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Solution

The fourth proportional to 112,475.70, 168,778.35 and 42,405.30 is: 63,632.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,475.70 : 168,778.35 = 42,405.30 : x
  2. Step 2: Convert to fraction form
    112,475.70/168,778.35 = 42,405.30/x
  3. Step 3: Cross multiply
    112,475.70x = 168,778.35 × 42,405.30
  4. Step 4: Simplify right side
    112,475.70x = 7,157,096,565.26
  5. Step 5: Solve for x
    x = 7,157,096,565.26/112,475.70
  6. Step 6: Final answer
    x = 63,632.38

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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.