Home / 129,494.06-178,803.16-101,280.14

Finding the Fourth Proportional to 129,494.06, 178,803.16 and 101,280.14

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Solution

The fourth proportional to 129,494.06, 178,803.16 and 101,280.14 is: 139,845.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,494.06 : 178,803.16 = 101,280.14 : x
  2. Step 2: Convert to fraction form
    129,494.06/178,803.16 = 101,280.14/x
  3. Step 3: Cross multiply
    129,494.06x = 178,803.16 × 101,280.14
  4. Step 4: Simplify right side
    129,494.06x = 18,109,209,077.24
  5. Step 5: Solve for x
    x = 18,109,209,077.24/129,494.06
  6. Step 6: Final answer
    x = 139,845.87

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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.