Home / 157,634.80-217,533-86,013.04

Finding the Fourth Proportional to 157,634.80, 217,533 and 86,013.04

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Solution

The fourth proportional to 157,634.80, 217,533 and 86,013.04 is: 118,696.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,634.80 : 217,533 = 86,013.04 : x
  2. Step 2: Convert to fraction form
    157,634.80/217,533 = 86,013.04/x
  3. Step 3: Cross multiply
    157,634.80x = 217,533 × 86,013.04
  4. Step 4: Simplify right side
    157,634.80x = 18,710,674,630.32
  5. Step 5: Solve for x
    x = 18,710,674,630.32/157,634.80
  6. Step 6: Final answer
    x = 118,696.35

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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.