Home / 150,818.85-208,130.49-81,908.55

Finding the Fourth Proportional to 150,818.85, 208,130.49 and 81,908.55

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Solution

The fourth proportional to 150,818.85, 208,130.49 and 81,908.55 is: 113,034.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,818.85 : 208,130.49 = 81,908.55 : x
  2. Step 2: Convert to fraction form
    150,818.85/208,130.49 = 81,908.55/x
  3. Step 3: Cross multiply
    150,818.85x = 208,130.49 × 81,908.55
  4. Step 4: Simplify right side
    150,818.85x = 17,047,666,646.69
  5. Step 5: Solve for x
    x = 17,047,666,646.69/150,818.85
  6. Step 6: Final answer
    x = 113,034.06

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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.