Home / 137,258.17-189,416.93-76,830.01

Finding the Fourth Proportional to 137,258.17, 189,416.93 and 76,830.01

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Solution

The fourth proportional to 137,258.17, 189,416.93 and 76,830.01 is: 106,025.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,258.17 : 189,416.93 = 76,830.01 : x
  2. Step 2: Convert to fraction form
    137,258.17/189,416.93 = 76,830.01/x
  3. Step 3: Cross multiply
    137,258.17x = 189,416.93 × 76,830.01
  4. Step 4: Simplify right side
    137,258.17x = 14,552,904,626.07
  5. Step 5: Solve for x
    x = 14,552,904,626.07/137,258.17
  6. Step 6: Final answer
    x = 106,025.78

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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.