Home / 151,729.19-209,457.12-88,054.68

Finding the Fourth Proportional to 151,729.19, 209,457.12 and 88,054.68

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Solution

The fourth proportional to 151,729.19, 209,457.12 and 88,054.68 is: 121,556.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,729.19 : 209,457.12 = 88,054.68 : x
  2. Step 2: Convert to fraction form
    151,729.19/209,457.12 = 88,054.68/x
  3. Step 3: Cross multiply
    151,729.19x = 209,457.12 × 88,054.68
  4. Step 4: Simplify right side
    151,729.19x = 18,443,679,675.32
  5. Step 5: Solve for x
    x = 18,443,679,675.32/151,729.19
  6. Step 6: Final answer
    x = 121,556.57

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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.