Home / 129,298.22-178,228.23-118,450.70

Finding the Fourth Proportional to 129,298.22, 178,228.23 and 118,450.70

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Solution

The fourth proportional to 129,298.22, 178,228.23 and 118,450.70 is: 163,275.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,298.22 : 178,228.23 = 118,450.70 : x
  2. Step 2: Convert to fraction form
    129,298.22/178,228.23 = 118,450.70/x
  3. Step 3: Cross multiply
    129,298.22x = 178,228.23 × 118,450.70
  4. Step 4: Simplify right side
    129,298.22x = 21,111,258,603.26
  5. Step 5: Solve for x
    x = 21,111,258,603.26/129,298.22
  6. Step 6: Final answer
    x = 163,275.71

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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.