Home / 157,636.80-217,534.68-86,017.68

Finding the Fourth Proportional to 157,636.80, 217,534.68 and 86,017.68

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Solution

The fourth proportional to 157,636.80, 217,534.68 and 86,017.68 is: 118,702.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,636.80 : 217,534.68 = 86,017.68 : x
  2. Step 2: Convert to fraction form
    157,636.80/217,534.68 = 86,017.68/x
  3. Step 3: Cross multiply
    157,636.80x = 217,534.68 × 86,017.68
  4. Step 4: Simplify right side
    157,636.80x = 18,711,828,493.14
  5. Step 5: Solve for x
    x = 18,711,828,493.14/157,636.80
  6. Step 6: Final answer
    x = 118,702.16

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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.