Home / 134,579.34-185,719.50-78,023.52

Finding the Fourth Proportional to 134,579.34, 185,719.50 and 78,023.52

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Solution

The fourth proportional to 134,579.34, 185,719.50 and 78,023.52 is: 107,672.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,579.34 : 185,719.50 = 78,023.52 : x
  2. Step 2: Convert to fraction form
    134,579.34/185,719.50 = 78,023.52/x
  3. Step 3: Cross multiply
    134,579.34x = 185,719.50 × 78,023.52
  4. Step 4: Simplify right side
    134,579.34x = 14,490,489,122.64
  5. Step 5: Solve for x
    x = 14,490,489,122.64/134,579.34
  6. Step 6: Final answer
    x = 107,672.46

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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.