Home / 110,313.34-152,148.98-76,378.62

Finding the Fourth Proportional to 110,313.34, 152,148.98 and 76,378.62

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Solution

The fourth proportional to 110,313.34, 152,148.98 and 76,378.62 is: 105,344.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,313.34 : 152,148.98 = 76,378.62 : x
  2. Step 2: Convert to fraction form
    110,313.34/152,148.98 = 76,378.62/x
  3. Step 3: Cross multiply
    110,313.34x = 152,148.98 × 76,378.62
  4. Step 4: Simplify right side
    110,313.34x = 11,620,929,126.81
  5. Step 5: Solve for x
    x = 11,620,929,126.81/110,313.34
  6. Step 6: Final answer
    x = 105,344.73

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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.