Home / 153,409.14-211,706.19-89,734.50

Finding the Fourth Proportional to 153,409.14, 211,706.19 and 89,734.50

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Solution

The fourth proportional to 153,409.14, 211,706.19 and 89,734.50 is: 123,834.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,409.14 : 211,706.19 = 89,734.50 : x
  2. Step 2: Convert to fraction form
    153,409.14/211,706.19 = 89,734.50/x
  3. Step 3: Cross multiply
    153,409.14x = 211,706.19 × 89,734.50
  4. Step 4: Simplify right side
    153,409.14x = 18,997,349,106.56
  5. Step 5: Solve for x
    x = 18,997,349,106.56/153,409.14
  6. Step 6: Final answer
    x = 123,834.53

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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.