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Finding the Fourth Proportional to 152,519.55, 210,476.44 and 85,451.55

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Solution

The fourth proportional to 152,519.55, 210,476.44 and 85,451.55 is: 117,922.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,519.55 : 210,476.44 = 85,451.55 : x
  2. Step 2: Convert to fraction form
    152,519.55/210,476.44 = 85,451.55/x
  3. Step 3: Cross multiply
    152,519.55x = 210,476.44 × 85,451.55
  4. Step 4: Simplify right side
    152,519.55x = 17,985,538,036.48
  5. Step 5: Solve for x
    x = 17,985,538,036.48/152,519.55
  6. Step 6: Final answer
    x = 117,922.84

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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.