Home / 153,476.22-211,829.86-103,146.06

Finding the Fourth Proportional to 153,476.22, 211,829.86 and 103,146.06

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Solution

The fourth proportional to 153,476.22, 211,829.86 and 103,146.06 is: 142,363.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,476.22 : 211,829.86 = 103,146.06 : x
  2. Step 2: Convert to fraction form
    153,476.22/211,829.86 = 103,146.06/x
  3. Step 3: Cross multiply
    153,476.22x = 211,829.86 × 103,146.06
  4. Step 4: Simplify right side
    153,476.22x = 21,849,415,449.35
  5. Step 5: Solve for x
    x = 21,849,415,449.35/153,476.22
  6. Step 6: Final answer
    x = 142,363.52

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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.