Home / 153,252.78-211,368.98-99,555.10

Finding the Fourth Proportional to 153,252.78, 211,368.98 and 99,555.10

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Solution

The fourth proportional to 153,252.78, 211,368.98 and 99,555.10 is: 137,308.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,252.78 : 211,368.98 = 99,555.10 : x
  2. Step 2: Convert to fraction form
    153,252.78/211,368.98 = 99,555.10/x
  3. Step 3: Cross multiply
    153,252.78x = 211,368.98 × 99,555.10
  4. Step 4: Simplify right side
    153,252.78x = 21,042,859,940.80
  5. Step 5: Solve for x
    x = 21,042,859,940.80/153,252.78
  6. Step 6: Final answer
    x = 137,308.18

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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.