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Finding the Fourth Proportional to 158,597.30, 218,888.25 and 90,628.58

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Solution

The fourth proportional to 158,597.30, 218,888.25 and 90,628.58 is: 125,081.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,597.30 : 218,888.25 = 90,628.58 : x
  2. Step 2: Convert to fraction form
    158,597.30/218,888.25 = 90,628.58/x
  3. Step 3: Cross multiply
    158,597.30x = 218,888.25 × 90,628.58
  4. Step 4: Simplify right side
    158,597.30x = 19,837,531,276.19
  5. Step 5: Solve for x
    x = 19,837,531,276.19/158,597.30
  6. Step 6: Final answer
    x = 125,081.14

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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.