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Finding the Fourth Proportional to 158,039.51, 218,208.74 and 97,692.89

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Solution

The fourth proportional to 158,039.51, 218,208.74 and 97,692.89 is: 134,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,039.51 : 218,208.74 = 97,692.89 : x
  2. Step 2: Convert to fraction form
    158,039.51/218,208.74 = 97,692.89/x
  3. Step 3: Cross multiply
    158,039.51x = 218,208.74 × 97,692.89
  4. Step 4: Simplify right side
    158,039.51x = 21,317,440,854.35
  5. Step 5: Solve for x
    x = 21,317,440,854.35/158,039.51
  6. Step 6: Final answer
    x = 134,886.79

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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.