Home / 102,085.11-152,971.74-42,888.42

Finding the Fourth Proportional to 102,085.11, 152,971.74 and 42,888.42

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Solution

The fourth proportional to 102,085.11, 152,971.74 and 42,888.42 is: 64,267.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,085.11 : 152,971.74 = 42,888.42 : x
  2. Step 2: Convert to fraction form
    102,085.11/152,971.74 = 42,888.42/x
  3. Step 3: Cross multiply
    102,085.11x = 152,971.74 × 42,888.42
  4. Step 4: Simplify right side
    102,085.11x = 6,560,716,233.25
  5. Step 5: Solve for x
    x = 6,560,716,233.25/102,085.11
  6. Step 6: Final answer
    x = 64,267.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.