Home / 151,740.45-209,370.51-87,197.22

Finding the Fourth Proportional to 151,740.45, 209,370.51 and 87,197.22

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Solution

The fourth proportional to 151,740.45, 209,370.51 and 87,197.22 is: 120,314.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,740.45 : 209,370.51 = 87,197.22 : x
  2. Step 2: Convert to fraction form
    151,740.45/209,370.51 = 87,197.22/x
  3. Step 3: Cross multiply
    151,740.45x = 209,370.51 × 87,197.22
  4. Step 4: Simplify right side
    151,740.45x = 18,256,526,421.98
  5. Step 5: Solve for x
    x = 18,256,526,421.98/151,740.45
  6. Step 6: Final answer
    x = 120,314.17

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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.