Home / 112,643.04-155,441.22-64,237.86

Finding the Fourth Proportional to 112,643.04, 155,441.22 and 64,237.86

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Solution

The fourth proportional to 112,643.04, 155,441.22 and 64,237.86 is: 88,644.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,643.04 : 155,441.22 = 64,237.86 : x
  2. Step 2: Convert to fraction form
    112,643.04/155,441.22 = 64,237.86/x
  3. Step 3: Cross multiply
    112,643.04x = 155,441.22 × 64,237.86
  4. Step 4: Simplify right side
    112,643.04x = 9,985,211,328.59
  5. Step 5: Solve for x
    x = 9,985,211,328.59/112,643.04
  6. Step 6: Final answer
    x = 88,644.73

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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.