Home / 117,130.35-161,639.65-63,415.35

Finding the Fourth Proportional to 117,130.35, 161,639.65 and 63,415.35

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Solution

The fourth proportional to 117,130.35, 161,639.65 and 63,415.35 is: 87,513.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,130.35 : 161,639.65 = 63,415.35 : x
  2. Step 2: Convert to fraction form
    117,130.35/161,639.65 = 63,415.35/x
  3. Step 3: Cross multiply
    117,130.35x = 161,639.65 × 63,415.35
  4. Step 4: Simplify right side
    117,130.35x = 10,250,434,978.63
  5. Step 5: Solve for x
    x = 10,250,434,978.63/117,130.35
  6. Step 6: Final answer
    x = 87,513.06

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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.