Home / 102,888.16-141,992.70-57,570.44

Finding the Fourth Proportional to 102,888.16, 141,992.70 and 57,570.44

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Solution

The fourth proportional to 102,888.16, 141,992.70 and 57,570.44 is: 79,451.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,888.16 : 141,992.70 = 57,570.44 : x
  2. Step 2: Convert to fraction form
    102,888.16/141,992.70 = 57,570.44/x
  3. Step 3: Cross multiply
    102,888.16x = 141,992.70 × 57,570.44
  4. Step 4: Simplify right side
    102,888.16x = 8,174,582,215.79
  5. Step 5: Solve for x
    x = 8,174,582,215.79/102,888.16
  6. Step 6: Final answer
    x = 79,451.15

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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.