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Finding the Fourth Proportional to 152,306.56, 210,155.56 and 87,764.14

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Solution

The fourth proportional to 152,306.56, 210,155.56 and 87,764.14 is: 121,098.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,306.56 : 210,155.56 = 87,764.14 : x
  2. Step 2: Convert to fraction form
    152,306.56/210,155.56 = 87,764.14/x
  3. Step 3: Cross multiply
    152,306.56x = 210,155.56 × 87,764.14
  4. Step 4: Simplify right side
    152,306.56x = 18,444,121,989.62
  5. Step 5: Solve for x
    x = 18,444,121,989.62/152,306.56
  6. Step 6: Final answer
    x = 121,098.67

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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.