Home / 153,089.43-211,266.93-85,103.79

Finding the Fourth Proportional to 153,089.43, 211,266.93 and 85,103.79

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Solution

The fourth proportional to 153,089.43, 211,266.93 and 85,103.79 is: 117,445.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,089.43 : 211,266.93 = 85,103.79 : x
  2. Step 2: Convert to fraction form
    153,089.43/211,266.93 = 85,103.79/x
  3. Step 3: Cross multiply
    153,089.43x = 211,266.93 × 85,103.79
  4. Step 4: Simplify right side
    153,089.43x = 17,979,616,444.66
  5. Step 5: Solve for x
    x = 17,979,616,444.66/153,089.43
  6. Step 6: Final answer
    x = 117,445.19

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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.