Home / 137,229.18-189,492.51-86,258.32

Finding the Fourth Proportional to 137,229.18, 189,492.51 and 86,258.32

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Solution

The fourth proportional to 137,229.18, 189,492.51 and 86,258.32 is: 119,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,229.18 : 189,492.51 = 86,258.32 : x
  2. Step 2: Convert to fraction form
    137,229.18/189,492.51 = 86,258.32/x
  3. Step 3: Cross multiply
    137,229.18x = 189,492.51 × 86,258.32
  4. Step 4: Simplify right side
    137,229.18x = 16,345,305,565.18
  5. Step 5: Solve for x
    x = 16,345,305,565.18/137,229.18
  6. Step 6: Final answer
    x = 119,109.55

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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.