Home / 130,723.86-180,398.93-74,135.24

Finding the Fourth Proportional to 130,723.86, 180,398.93 and 74,135.24

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Solution

The fourth proportional to 130,723.86, 180,398.93 and 74,135.24 is: 102,306.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,723.86 : 180,398.93 = 74,135.24 : x
  2. Step 2: Convert to fraction form
    130,723.86/180,398.93 = 74,135.24/x
  3. Step 3: Cross multiply
    130,723.86x = 180,398.93 × 74,135.24
  4. Step 4: Simplify right side
    130,723.86x = 13,373,916,976.63
  5. Step 5: Solve for x
    x = 13,373,916,976.63/130,723.86
  6. Step 6: Final answer
    x = 102,306.63

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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.