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Finding the Fourth Proportional to 105,596.87, 158,394.08 and 42,433.07

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Solution

The fourth proportional to 105,596.87, 158,394.08 and 42,433.07 is: 63,649.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,596.87 : 158,394.08 = 42,433.07 : x
  2. Step 2: Convert to fraction form
    105,596.87/158,394.08 = 42,433.07/x
  3. Step 3: Cross multiply
    105,596.87x = 158,394.08 × 42,433.07
  4. Step 4: Simplify right side
    105,596.87x = 6,721,146,398.34
  5. Step 5: Solve for x
    x = 6,721,146,398.34/105,596.87
  6. Step 6: Final answer
    x = 63,649.11

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1.5x scale

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.