Home / 153,411.14-211,708.95-89,736.50

Finding the Fourth Proportional to 153,411.14, 211,708.95 and 89,736.50

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Solution

The fourth proportional to 153,411.14, 211,708.95 and 89,736.50 is: 123,837.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,411.14 : 211,708.95 = 89,736.50 : x
  2. Step 2: Convert to fraction form
    153,411.14/211,708.95 = 89,736.50/x
  3. Step 3: Cross multiply
    153,411.14x = 211,708.95 × 89,736.50
  4. Step 4: Simplify right side
    153,411.14x = 18,998,020,191.68
  5. Step 5: Solve for x
    x = 18,998,020,191.68/153,411.14
  6. Step 6: Final answer
    x = 123,837.29

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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.