Home / 154,411.29-213,069.68-86,432.07

Finding the Fourth Proportional to 154,411.29, 213,069.68 and 86,432.07

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Solution

The fourth proportional to 154,411.29, 213,069.68 and 86,432.07 is: 119,266.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,411.29 : 213,069.68 = 86,432.07 : x
  2. Step 2: Convert to fraction form
    154,411.29/213,069.68 = 86,432.07/x
  3. Step 3: Cross multiply
    154,411.29x = 213,069.68 × 86,432.07
  4. Step 4: Simplify right side
    154,411.29x = 18,416,053,064.48
  5. Step 5: Solve for x
    x = 18,416,053,064.48/154,411.29
  6. Step 6: Final answer
    x = 119,266.23

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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.