Home / 157,807.08-217,774.98-86,185.80

Finding the Fourth Proportional to 157,807.08, 217,774.98 and 86,185.80

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Solution

The fourth proportional to 157,807.08, 217,774.98 and 86,185.80 is: 118,937.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,807.08 : 217,774.98 = 86,185.80 : x
  2. Step 2: Convert to fraction form
    157,807.08/217,774.98 = 86,185.80/x
  3. Step 3: Cross multiply
    157,807.08x = 217,774.98 × 86,185.80
  4. Step 4: Simplify right side
    157,807.08x = 18,769,110,871.28
  5. Step 5: Solve for x
    x = 18,769,110,871.28/157,807.08
  6. Step 6: Final answer
    x = 118,937.06

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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.