Home / 112,640.16-155,482.26-64,912.52

Finding the Fourth Proportional to 112,640.16, 155,482.26 and 64,912.52

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Solution

The fourth proportional to 112,640.16, 155,482.26 and 64,912.52 is: 89,601.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,640.16 : 155,482.26 = 64,912.52 : x
  2. Step 2: Convert to fraction form
    112,640.16/155,482.26 = 64,912.52/x
  3. Step 3: Cross multiply
    112,640.16x = 155,482.26 × 64,912.52
  4. Step 4: Simplify right side
    112,640.16x = 10,092,745,311.90
  5. Step 5: Solve for x
    x = 10,092,745,311.90/112,640.16
  6. Step 6: Final answer
    x = 89,601.66

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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.