Home / 157,641.58-217,545.94-86,023.18

Finding the Fourth Proportional to 157,641.58, 217,545.94 and 86,023.18

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Solution

The fourth proportional to 157,641.58, 217,545.94 and 86,023.18 is: 118,712.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,641.58 : 217,545.94 = 86,023.18 : x
  2. Step 2: Convert to fraction form
    157,641.58/217,545.94 = 86,023.18/x
  3. Step 3: Cross multiply
    157,641.58x = 217,545.94 × 86,023.18
  4. Step 4: Simplify right side
    157,641.58x = 18,713,993,554.89
  5. Step 5: Solve for x
    x = 18,713,993,554.89/157,641.58
  6. Step 6: Final answer
    x = 118,712.29

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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.