Home / 152,113.87-209,934.75-91,715.41

Finding the Fourth Proportional to 152,113.87, 209,934.75 and 91,715.41

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Solution

The fourth proportional to 152,113.87, 209,934.75 and 91,715.41 is: 126,577.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,113.87 : 209,934.75 = 91,715.41 : x
  2. Step 2: Convert to fraction form
    152,113.87/209,934.75 = 91,715.41/x
  3. Step 3: Cross multiply
    152,113.87x = 209,934.75 × 91,715.41
  4. Step 4: Simplify right side
    152,113.87x = 19,254,251,669.50
  5. Step 5: Solve for x
    x = 19,254,251,669.50/152,113.87
  6. Step 6: Final answer
    x = 126,577.88

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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.