Home / 130,657.32-196,099.74-74,609.64

Finding the Fourth Proportional to 130,657.32, 196,099.74 and 74,609.64

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Solution

The fourth proportional to 130,657.32, 196,099.74 and 74,609.64 is: 111,979.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,657.32 : 196,099.74 = 74,609.64 : x
  2. Step 2: Convert to fraction form
    130,657.32/196,099.74 = 74,609.64/x
  3. Step 3: Cross multiply
    130,657.32x = 196,099.74 × 74,609.64
  4. Step 4: Simplify right side
    130,657.32x = 14,630,931,005.49
  5. Step 5: Solve for x
    x = 14,630,931,005.49/130,657.32
  6. Step 6: Final answer
    x = 111,979.42

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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.