Home / 151,711.85-209,312.43-98,028.50

Finding the Fourth Proportional to 151,711.85, 209,312.43 and 98,028.50

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Solution

The fourth proportional to 151,711.85, 209,312.43 and 98,028.50 is: 135,247.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,711.85 : 209,312.43 = 98,028.50 : x
  2. Step 2: Convert to fraction form
    151,711.85/209,312.43 = 98,028.50/x
  3. Step 3: Cross multiply
    151,711.85x = 209,312.43 × 98,028.50
  4. Step 4: Simplify right side
    151,711.85x = 20,518,582,497.69
  5. Step 5: Solve for x
    x = 20,518,582,497.69/151,711.85
  6. Step 6: Final answer
    x = 135,247.07

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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.