Home / 121,030.96-181,551.30-42,153.16

Finding the Fourth Proportional to 121,030.96, 181,551.30 and 42,153.16

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Solution

The fourth proportional to 121,030.96, 181,551.30 and 42,153.16 is: 63,231.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,030.96 : 181,551.30 = 42,153.16 : x
  2. Step 2: Convert to fraction form
    121,030.96/181,551.30 = 42,153.16/x
  3. Step 3: Cross multiply
    121,030.96x = 181,551.30 × 42,153.16
  4. Step 4: Simplify right side
    121,030.96x = 7,652,960,997.11
  5. Step 5: Solve for x
    x = 7,652,960,997.11/121,030.96
  6. Step 6: Final answer
    x = 63,231.43

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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.