Home / 152,985.52-211,119.33-85,013.56

Finding the Fourth Proportional to 152,985.52, 211,119.33 and 85,013.56

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Solution

The fourth proportional to 152,985.52, 211,119.33 and 85,013.56 is: 117,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,985.52 : 211,119.33 = 85,013.56 : x
  2. Step 2: Convert to fraction form
    152,985.52/211,119.33 = 85,013.56/x
  3. Step 3: Cross multiply
    152,985.52x = 211,119.33 × 85,013.56
  4. Step 4: Simplify right side
    152,985.52x = 17,948,005,828.11
  5. Step 5: Solve for x
    x = 17,948,005,828.11/152,985.52
  6. Step 6: Final answer
    x = 117,318.33

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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.