Home / 153,001.67-211,139.51-85,017.41

Finding the Fourth Proportional to 153,001.67, 211,139.51 and 85,017.41

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Solution

The fourth proportional to 153,001.67, 211,139.51 and 85,017.41 is: 117,322.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,001.67 : 211,139.51 = 85,017.41 : x
  2. Step 2: Convert to fraction form
    153,001.67/211,139.51 = 85,017.41/x
  3. Step 3: Cross multiply
    153,001.67x = 211,139.51 × 85,017.41
  4. Step 4: Simplify right side
    153,001.67x = 17,950,534,288.87
  5. Step 5: Solve for x
    x = 17,950,534,288.87/153,001.67
  6. Step 6: Final answer
    x = 117,322.47

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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.