Home / 153,934.98-212,374.08-90,260.43

Finding the Fourth Proportional to 153,934.98, 212,374.08 and 90,260.43

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Solution

The fourth proportional to 153,934.98, 212,374.08 and 90,260.43 is: 124,526.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,934.98 : 212,374.08 = 90,260.43 : x
  2. Step 2: Convert to fraction form
    153,934.98/212,374.08 = 90,260.43/x
  3. Step 3: Cross multiply
    153,934.98x = 212,374.08 × 90,260.43
  4. Step 4: Simplify right side
    153,934.98x = 19,168,975,781.65
  5. Step 5: Solve for x
    x = 19,168,975,781.65/153,934.98
  6. Step 6: Final answer
    x = 124,526.44

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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.