Home / 102,518.48-141,475.70-57,195.32

Finding the Fourth Proportional to 102,518.48, 141,475.70 and 57,195.32

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Solution

The fourth proportional to 102,518.48, 141,475.70 and 57,195.32 is: 78,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,518.48 : 141,475.70 = 57,195.32 : x
  2. Step 2: Convert to fraction form
    102,518.48/141,475.70 = 57,195.32/x
  3. Step 3: Cross multiply
    102,518.48x = 141,475.70 × 57,195.32
  4. Step 4: Simplify right side
    102,518.48x = 8,091,747,933.72
  5. Step 5: Solve for x
    x = 8,091,747,933.72/102,518.48
  6. Step 6: Final answer
    x = 78,929.65

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1.5x scale

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.