Home / 152,378.28-210,212.01-98,680.95

Finding the Fourth Proportional to 152,378.28, 210,212.01 and 98,680.95

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Solution

The fourth proportional to 152,378.28, 210,212.01 and 98,680.95 is: 136,134.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,378.28 : 210,212.01 = 98,680.95 : x
  2. Step 2: Convert to fraction form
    152,378.28/210,212.01 = 98,680.95/x
  3. Step 3: Cross multiply
    152,378.28x = 210,212.01 × 98,680.95
  4. Step 4: Simplify right side
    152,378.28x = 20,743,920,848.21
  5. Step 5: Solve for x
    x = 20,743,920,848.21/152,378.28
  6. Step 6: Final answer
    x = 136,134.37

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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.