Home / 102,484.50-141,429.40-57,165.42

Finding the Fourth Proportional to 102,484.50, 141,429.40 and 57,165.42

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Solution

The fourth proportional to 102,484.50, 141,429.40 and 57,165.42 is: 78,888.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,484.50 : 141,429.40 = 57,165.42 : x
  2. Step 2: Convert to fraction form
    102,484.50/141,429.40 = 57,165.42/x
  3. Step 3: Cross multiply
    102,484.50x = 141,429.40 × 57,165.42
  4. Step 4: Simplify right side
    102,484.50x = 8,084,871,051.35
  5. Step 5: Solve for x
    x = 8,084,871,051.35/102,484.50
  6. Step 6: Final answer
    x = 78,888.72

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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.