Home / 153,106.66-211,294.22-85,130.56

Finding the Fourth Proportional to 153,106.66, 211,294.22 and 85,130.56

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Solution

The fourth proportional to 153,106.66, 211,294.22 and 85,130.56 is: 117,484.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,106.66 : 211,294.22 = 85,130.56 : x
  2. Step 2: Convert to fraction form
    153,106.66/211,294.22 = 85,130.56/x
  3. Step 3: Cross multiply
    153,106.66x = 211,294.22 × 85,130.56
  4. Step 4: Simplify right side
    153,106.66x = 17,987,595,273.36
  5. Step 5: Solve for x
    x = 17,987,595,273.36/153,106.66
  6. Step 6: Final answer
    x = 117,484.08

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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.