Home / 103,154.78-142,353.47-57,832.77

Finding the Fourth Proportional to 103,154.78, 142,353.47 and 57,832.77

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Solution

The fourth proportional to 103,154.78, 142,353.47 and 57,832.77 is: 79,809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,154.78 : 142,353.47 = 57,832.77 : x
  2. Step 2: Convert to fraction form
    103,154.78/142,353.47 = 57,832.77/x
  3. Step 3: Cross multiply
    103,154.78x = 142,353.47 × 57,832.77
  4. Step 4: Simplify right side
    103,154.78x = 8,232,695,200.05
  5. Step 5: Solve for x
    x = 8,232,695,200.05/103,154.78
  6. Step 6: Final answer
    x = 79,809.15

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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.