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Finding the Fourth Proportional to 189,031.40, 283,555.04 and 87,924.32

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Solution

The fourth proportional to 189,031.40, 283,555.04 and 87,924.32 is: 131,890.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,031.40 : 283,555.04 = 87,924.32 : x
  2. Step 2: Convert to fraction form
    189,031.40/283,555.04 = 87,924.32/x
  3. Step 3: Cross multiply
    189,031.40x = 283,555.04 × 87,924.32
  4. Step 4: Simplify right side
    189,031.40x = 24,931,384,074.57
  5. Step 5: Solve for x
    x = 24,931,384,074.57/189,031.40
  6. Step 6: Final answer
    x = 131,890.17

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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.