Home / 151,119.68-208,532.16-87,461.60

Finding the Fourth Proportional to 151,119.68, 208,532.16 and 87,461.60

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Solution

The fourth proportional to 151,119.68, 208,532.16 and 87,461.60 is: 120,689.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,119.68 : 208,532.16 = 87,461.60 : x
  2. Step 2: Convert to fraction form
    151,119.68/208,532.16 = 87,461.60/x
  3. Step 3: Cross multiply
    151,119.68x = 208,532.16 × 87,461.60
  4. Step 4: Simplify right side
    151,119.68x = 18,238,556,365.06
  5. Step 5: Solve for x
    x = 18,238,556,365.06/151,119.68
  6. Step 6: Final answer
    x = 120,689.49

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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.