Home / 124,718.08-172,114.32-74,446.24

Finding the Fourth Proportional to 124,718.08, 172,114.32 and 74,446.24

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Solution

The fourth proportional to 124,718.08, 172,114.32 and 74,446.24 is: 102,737.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,718.08 : 172,114.32 = 74,446.24 : x
  2. Step 2: Convert to fraction form
    124,718.08/172,114.32 = 74,446.24/x
  3. Step 3: Cross multiply
    124,718.08x = 172,114.32 × 74,446.24
  4. Step 4: Simplify right side
    124,718.08x = 12,813,263,974.16
  5. Step 5: Solve for x
    x = 12,813,263,974.16/124,718.08
  6. Step 6: Final answer
    x = 102,737.82

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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.