Home / 117,160.23-161,641.43-76,870.23

Finding the Fourth Proportional to 117,160.23, 161,641.43 and 76,870.23

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Solution

The fourth proportional to 117,160.23, 161,641.43 and 76,870.23 is: 106,054.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,160.23 : 161,641.43 = 76,870.23 : x
  2. Step 2: Convert to fraction form
    117,160.23/161,641.43 = 76,870.23/x
  3. Step 3: Cross multiply
    117,160.23x = 161,641.43 × 76,870.23
  4. Step 4: Simplify right side
    117,160.23x = 12,425,413,901.63
  5. Step 5: Solve for x
    x = 12,425,413,901.63/117,160.23
  6. Step 6: Final answer
    x = 106,054.88

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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.