Home / 102,618.93-141,612.65-57,297.62

Finding the Fourth Proportional to 102,618.93, 141,612.65 and 57,297.62

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Solution

The fourth proportional to 102,618.93, 141,612.65 and 57,297.62 is: 79,069.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,618.93 : 141,612.65 = 57,297.62 : x
  2. Step 2: Convert to fraction form
    102,618.93/141,612.65 = 57,297.62/x
  3. Step 3: Cross multiply
    102,618.93x = 141,612.65 × 57,297.62
  4. Step 4: Simplify right side
    102,618.93x = 8,114,067,806.89
  5. Step 5: Solve for x
    x = 8,114,067,806.89/102,618.93
  6. Step 6: Final answer
    x = 79,069.89

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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.