Home / 131,788.64-181,854.40-74,424.52

Finding the Fourth Proportional to 131,788.64, 181,854.40 and 74,424.52

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Solution

The fourth proportional to 131,788.64, 181,854.40 and 74,424.52 is: 102,697.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,788.64 : 181,854.40 = 74,424.52 : x
  2. Step 2: Convert to fraction form
    131,788.64/181,854.40 = 74,424.52/x
  3. Step 3: Cross multiply
    131,788.64x = 181,854.40 × 74,424.52
  4. Step 4: Simplify right side
    131,788.64x = 13,534,426,429.89
  5. Step 5: Solve for x
    x = 13,534,426,429.89/131,788.64
  6. Step 6: Final answer
    x = 102,697.97

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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.