Home / 112,416.76-155,133.25-61,428.37

Finding the Fourth Proportional to 112,416.76, 155,133.25 and 61,428.37

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Solution

The fourth proportional to 112,416.76, 155,133.25 and 61,428.37 is: 84,770.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,416.76 : 155,133.25 = 61,428.37 : x
  2. Step 2: Convert to fraction form
    112,416.76/155,133.25 = 61,428.37/x
  3. Step 3: Cross multiply
    112,416.76x = 155,133.25 × 61,428.37
  4. Step 4: Simplify right side
    112,416.76x = 9,529,582,680.30
  5. Step 5: Solve for x
    x = 9,529,582,680.30/112,416.76
  6. Step 6: Final answer
    x = 84,770.12

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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.