Home / 153,106.22-211,293.62-85,130.17

Finding the Fourth Proportional to 153,106.22, 211,293.62 and 85,130.17

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Solution

The fourth proportional to 153,106.22, 211,293.62 and 85,130.17 is: 117,483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,106.22 : 211,293.62 = 85,130.17 : x
  2. Step 2: Convert to fraction form
    153,106.22/211,293.62 = 85,130.17/x
  3. Step 3: Cross multiply
    153,106.22x = 211,293.62 × 85,130.17
  4. Step 4: Simplify right side
    153,106.22x = 17,987,461,790.52
  5. Step 5: Solve for x
    x = 17,987,461,790.52/153,106.22
  6. Step 6: Final answer
    x = 117,483.55

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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.