Home / 102,142.72-153,180.06-42,967.36

Finding the Fourth Proportional to 102,142.72, 153,180.06 and 42,967.36

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Solution

The fourth proportional to 102,142.72, 153,180.06 and 42,967.36 is: 64,436.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,142.72 : 153,180.06 = 42,967.36 : x
  2. Step 2: Convert to fraction form
    102,142.72/153,180.06 = 42,967.36/x
  3. Step 3: Cross multiply
    102,142.72x = 153,180.06 × 42,967.36
  4. Step 4: Simplify right side
    102,142.72x = 6,581,742,782.84
  5. Step 5: Solve for x
    x = 6,581,742,782.84/102,142.72
  6. Step 6: Final answer
    x = 64,436.73

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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.