Home / 102,445.80-141,374.60-57,124.34

Finding the Fourth Proportional to 102,445.80, 141,374.60 and 57,124.34

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Solution

The fourth proportional to 102,445.80, 141,374.60 and 57,124.34 is: 78,831.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,445.80 : 141,374.60 = 57,124.34 : x
  2. Step 2: Convert to fraction form
    102,445.80/141,374.60 = 57,124.34/x
  3. Step 3: Cross multiply
    102,445.80x = 141,374.60 × 57,124.34
  4. Step 4: Simplify right side
    102,445.80x = 8,075,930,469.64
  5. Step 5: Solve for x
    x = 8,075,930,469.64/102,445.80
  6. Step 6: Final answer
    x = 78,831.25

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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.