Home / 124,569.18-171,853.11-86,865.30

Finding the Fourth Proportional to 124,569.18, 171,853.11 and 86,865.30

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Solution

The fourth proportional to 124,569.18, 171,853.11 and 86,865.30 is: 119,837.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,569.18 : 171,853.11 = 86,865.30 : x
  2. Step 2: Convert to fraction form
    124,569.18/171,853.11 = 86,865.30/x
  3. Step 3: Cross multiply
    124,569.18x = 171,853.11 × 86,865.30
  4. Step 4: Simplify right side
    124,569.18x = 14,928,071,956.08
  5. Step 5: Solve for x
    x = 14,928,071,956.08/124,569.18
  6. Step 6: Final answer
    x = 119,837.60

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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.