Home / 157,420.77-217,245.75-89,436.51

Finding the Fourth Proportional to 157,420.77, 217,245.75 and 89,436.51

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Solution

The fourth proportional to 157,420.77, 217,245.75 and 89,436.51 is: 123,425.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,420.77 : 217,245.75 = 89,436.51 : x
  2. Step 2: Convert to fraction form
    157,420.77/217,245.75 = 89,436.51/x
  3. Step 3: Cross multiply
    157,420.77x = 217,245.75 × 89,436.51
  4. Step 4: Simplify right side
    157,420.77x = 19,429,701,692.33
  5. Step 5: Solve for x
    x = 19,429,701,692.33/157,420.77
  6. Step 6: Final answer
    x = 123,425.27

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1.5x scale

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.