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Finding the Fourth Proportional to 160,499.16, 221,483.81 and 87,898.86

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Solution

The fourth proportional to 160,499.16, 221,483.81 and 87,898.86 is: 121,297.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,499.16 : 221,483.81 = 87,898.86 : x
  2. Step 2: Convert to fraction form
    160,499.16/221,483.81 = 87,898.86/x
  3. Step 3: Cross multiply
    160,499.16x = 221,483.81 × 87,898.86
  4. Step 4: Simplify right side
    160,499.16x = 19,468,174,627.20
  5. Step 5: Solve for x
    x = 19,468,174,627.20/160,499.16
  6. Step 6: Final answer
    x = 121,297.67

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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.