Home / 188,221.15-282,082.51-138,066.45

Finding the Fourth Proportional to 188,221.15, 282,082.51 and 138,066.45

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Solution

The fourth proportional to 188,221.15, 282,082.51 and 138,066.45 is: 206,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,221.15 : 282,082.51 = 138,066.45 : x
  2. Step 2: Convert to fraction form
    188,221.15/282,082.51 = 138,066.45/x
  3. Step 3: Cross multiply
    188,221.15x = 282,082.51 × 138,066.45
  4. Step 4: Simplify right side
    188,221.15x = 38,946,130,762.79
  5. Step 5: Solve for x
    x = 38,946,130,762.79/188,221.15
  6. Step 6: Final answer
    x = 206,916.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.