Home / 121,274.64-181,890.28-42,411.48

Finding the Fourth Proportional to 121,274.64, 181,890.28 and 42,411.48

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Solution

The fourth proportional to 121,274.64, 181,890.28 and 42,411.48 is: 63,609.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,274.64 : 181,890.28 = 42,411.48 : x
  2. Step 2: Convert to fraction form
    121,274.64/181,890.28 = 42,411.48/x
  3. Step 3: Cross multiply
    121,274.64x = 181,890.28 × 42,411.48
  4. Step 4: Simplify right side
    121,274.64x = 7,714,235,972.41
  5. Step 5: Solve for x
    x = 7,714,235,972.41/121,274.64
  6. Step 6: Final answer
    x = 63,609.64

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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.