Home / 129,902.47-179,270.41-73,312.63

Finding the Fourth Proportional to 129,902.47, 179,270.41 and 73,312.63

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Solution

The fourth proportional to 129,902.47, 179,270.41 and 73,312.63 is: 101,174.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,902.47 : 179,270.41 = 73,312.63 : x
  2. Step 2: Convert to fraction form
    129,902.47/179,270.41 = 73,312.63/x
  3. Step 3: Cross multiply
    129,902.47x = 179,270.41 × 73,312.63
  4. Step 4: Simplify right side
    129,902.47x = 13,142,784,341.93
  5. Step 5: Solve for x
    x = 13,142,784,341.93/129,902.47
  6. Step 6: Final answer
    x = 101,174.25

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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.