Home / 158,171.17-218,276.23-86,551.21

Finding the Fourth Proportional to 158,171.17, 218,276.23 and 86,551.21

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Solution

The fourth proportional to 158,171.17, 218,276.23 and 86,551.21 is: 119,440.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,171.17 : 218,276.23 = 86,551.21 : x
  2. Step 2: Convert to fraction form
    158,171.17/218,276.23 = 86,551.21/x
  3. Step 3: Cross multiply
    158,171.17x = 218,276.23 × 86,551.21
  4. Step 4: Simplify right side
    158,171.17x = 18,892,071,547.30
  5. Step 5: Solve for x
    x = 18,892,071,547.30/158,171.17
  6. Step 6: Final answer
    x = 119,440.68

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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.