Home / 109,440.56-151,018.90-61,705.64

Finding the Fourth Proportional to 109,440.56, 151,018.90 and 61,705.64

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Solution

The fourth proportional to 109,440.56, 151,018.90 and 61,705.64 is: 85,148.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,440.56 : 151,018.90 = 61,705.64 : x
  2. Step 2: Convert to fraction form
    109,440.56/151,018.90 = 61,705.64/x
  3. Step 3: Cross multiply
    109,440.56x = 151,018.90 × 61,705.64
  4. Step 4: Simplify right side
    109,440.56x = 9,318,717,876.60
  5. Step 5: Solve for x
    x = 9,318,717,876.60/109,440.56
  6. Step 6: Final answer
    x = 85,148.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.