Home / 124,639.32-172,005.21-68,051.10

Finding the Fourth Proportional to 124,639.32, 172,005.21 and 68,051.10

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Solution

The fourth proportional to 124,639.32, 172,005.21 and 68,051.10 is: 93,912.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,639.32 : 172,005.21 = 68,051.10 : x
  2. Step 2: Convert to fraction form
    124,639.32/172,005.21 = 68,051.10/x
  3. Step 3: Cross multiply
    124,639.32x = 172,005.21 × 68,051.10
  4. Step 4: Simplify right side
    124,639.32x = 11,705,143,746.23
  5. Step 5: Solve for x
    x = 11,705,143,746.23/124,639.32
  6. Step 6: Final answer
    x = 93,912.13

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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.