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Finding the Fourth Proportional to 111,212.42, 153,484.11 and 63,472.91

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Solution

The fourth proportional to 111,212.42, 153,484.11 and 63,472.91 is: 87,598.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,212.42 : 153,484.11 = 63,472.91 : x
  2. Step 2: Convert to fraction form
    111,212.42/153,484.11 = 63,472.91/x
  3. Step 3: Cross multiply
    111,212.42x = 153,484.11 × 63,472.91
  4. Step 4: Simplify right side
    111,212.42x = 9,742,082,333.04
  5. Step 5: Solve for x
    x = 9,742,082,333.04/111,212.42
  6. Step 6: Final answer
    x = 87,598.87

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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.