Home / 152,955.74-229,409.92-78,131.18

Finding the Fourth Proportional to 152,955.74, 229,409.92 and 78,131.18

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Solution

The fourth proportional to 152,955.74, 229,409.92 and 78,131.18 is: 117,184.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,955.74 : 229,409.92 = 78,131.18 : x
  2. Step 2: Convert to fraction form
    152,955.74/229,409.92 = 78,131.18/x
  3. Step 3: Cross multiply
    152,955.74x = 229,409.92 × 78,131.18
  4. Step 4: Simplify right side
    152,955.74x = 17,924,068,424.49
  5. Step 5: Solve for x
    x = 17,924,068,424.49/152,955.74
  6. Step 6: Final answer
    x = 117,184.67

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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.