Home / 117,011.70-161,444.07-74,535.30

Finding the Fourth Proportional to 117,011.70, 161,444.07 and 74,535.30

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Solution

The fourth proportional to 117,011.70, 161,444.07 and 74,535.30 is: 102,838.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,011.70 : 161,444.07 = 74,535.30 : x
  2. Step 2: Convert to fraction form
    117,011.70/161,444.07 = 74,535.30/x
  3. Step 3: Cross multiply
    117,011.70x = 161,444.07 × 74,535.30
  4. Step 4: Simplify right side
    117,011.70x = 12,033,282,190.67
  5. Step 5: Solve for x
    x = 12,033,282,190.67/117,011.70
  6. Step 6: Final answer
    x = 102,838.28

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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.