Home / 100,832.63-139,146.57-55,510.25

Finding the Fourth Proportional to 100,832.63, 139,146.57 and 55,510.25

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Solution

The fourth proportional to 100,832.63, 139,146.57 and 55,510.25 is: 76,602.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,832.63 : 139,146.57 = 55,510.25 : x
  2. Step 2: Convert to fraction form
    100,832.63/139,146.57 = 55,510.25/x
  3. Step 3: Cross multiply
    100,832.63x = 139,146.57 × 55,510.25
  4. Step 4: Simplify right side
    100,832.63x = 7,724,060,191.61
  5. Step 5: Solve for x
    x = 7,724,060,191.61/100,832.63
  6. Step 6: Final answer
    x = 76,602.79

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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.