Home / 115,200.32-172,823.88-48,640.64

Finding the Fourth Proportional to 115,200.32, 172,823.88 and 48,640.64

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Solution

The fourth proportional to 115,200.32, 172,823.88 and 48,640.64 is: 72,970.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,200.32 : 172,823.88 = 48,640.64 : x
  2. Step 2: Convert to fraction form
    115,200.32/172,823.88 = 48,640.64/x
  3. Step 3: Cross multiply
    115,200.32x = 172,823.88 × 48,640.64
  4. Step 4: Simplify right side
    115,200.32x = 8,406,264,130.48
  5. Step 5: Solve for x
    x = 8,406,264,130.48/115,200.32
  6. Step 6: Final answer
    x = 72,970.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.