Home / 153,342.74-211,598.97-89,669.45

Finding the Fourth Proportional to 153,342.74, 211,598.97 and 89,669.45

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Solution

The fourth proportional to 153,342.74, 211,598.97 and 89,669.45 is: 123,735.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,342.74 : 211,598.97 = 89,669.45 : x
  2. Step 2: Convert to fraction form
    153,342.74/211,598.97 = 89,669.45/x
  3. Step 3: Cross multiply
    153,342.74x = 211,598.97 × 89,669.45
  4. Step 4: Simplify right side
    153,342.74x = 18,973,963,260.47
  5. Step 5: Solve for x
    x = 18,973,963,260.47/153,342.74
  6. Step 6: Final answer
    x = 123,735.65

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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.