Home / 154,605.18-213,397.12-90,963.48

Finding the Fourth Proportional to 154,605.18, 213,397.12 and 90,963.48

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Solution

The fourth proportional to 154,605.18, 213,397.12 and 90,963.48 is: 125,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,605.18 : 213,397.12 = 90,963.48 : x
  2. Step 2: Convert to fraction form
    154,605.18/213,397.12 = 90,963.48/x
  3. Step 3: Cross multiply
    154,605.18x = 213,397.12 × 90,963.48
  4. Step 4: Simplify right side
    154,605.18x = 19,411,344,657.18
  5. Step 5: Solve for x
    x = 19,411,344,657.18/154,605.18
  6. Step 6: Final answer
    x = 125,554.30

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1.5x scale

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.