Home / 154,411.12-213,097.08-89,881.84

Finding the Fourth Proportional to 154,411.12, 213,097.08 and 89,881.84

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Solution

The fourth proportional to 154,411.12, 213,097.08 and 89,881.84 is: 124,042.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,411.12 : 213,097.08 = 89,881.84 : x
  2. Step 2: Convert to fraction form
    154,411.12/213,097.08 = 89,881.84/x
  3. Step 3: Cross multiply
    154,411.12x = 213,097.08 × 89,881.84
  4. Step 4: Simplify right side
    154,411.12x = 19,153,557,649.03
  5. Step 5: Solve for x
    x = 19,153,557,649.03/154,411.12
  6. Step 6: Final answer
    x = 124,042.61

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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.