Home / 153,072.72-211,274.63-85,113.52

Finding the Fourth Proportional to 153,072.72, 211,274.63 and 85,113.52

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Solution

The fourth proportional to 153,072.72, 211,274.63 and 85,113.52 is: 117,475.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,072.72 : 211,274.63 = 85,113.52 : x
  2. Step 2: Convert to fraction form
    153,072.72/211,274.63 = 85,113.52/x
  3. Step 3: Cross multiply
    153,072.72x = 211,274.63 × 85,113.52
  4. Step 4: Simplify right side
    153,072.72x = 17,982,326,811.42
  5. Step 5: Solve for x
    x = 17,982,326,811.42/153,072.72
  6. Step 6: Final answer
    x = 117,475.71

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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.