Home / 126,416.60-189,697.80-47,587.40

Finding the Fourth Proportional to 126,416.60, 189,697.80 and 47,587.40

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Solution

The fourth proportional to 126,416.60, 189,697.80 and 47,587.40 is: 71,408.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,416.60 : 189,697.80 = 47,587.40 : x
  2. Step 2: Convert to fraction form
    126,416.60/189,697.80 = 47,587.40/x
  3. Step 3: Cross multiply
    126,416.60x = 189,697.80 × 47,587.40
  4. Step 4: Simplify right side
    126,416.60x = 9,027,225,087.72
  5. Step 5: Solve for x
    x = 9,027,225,087.72/126,416.60
  6. Step 6: Final answer
    x = 71,408.54

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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.