Home / 112,290.40-168,500.40-42,176.80

Finding the Fourth Proportional to 112,290.40, 168,500.40 and 42,176.80

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Solution

The fourth proportional to 112,290.40, 168,500.40 and 42,176.80 is: 63,289.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,290.40 : 168,500.40 = 42,176.80 : x
  2. Step 2: Convert to fraction form
    112,290.40/168,500.40 = 42,176.80/x
  3. Step 3: Cross multiply
    112,290.40x = 168,500.40 × 42,176.80
  4. Step 4: Simplify right side
    112,290.40x = 7,106,807,670.72
  5. Step 5: Solve for x
    x = 7,106,807,670.72/112,290.40
  6. Step 6: Final answer
    x = 63,289.54

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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.