Home / 114,865.60-172,297.32-39,985.60

Finding the Fourth Proportional to 114,865.60, 172,297.32 and 39,985.60

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Solution

The fourth proportional to 114,865.60, 172,297.32 and 39,985.60 is: 59,978.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,865.60 : 172,297.32 = 39,985.60 : x
  2. Step 2: Convert to fraction form
    114,865.60/172,297.32 = 39,985.60/x
  3. Step 3: Cross multiply
    114,865.60x = 172,297.32 × 39,985.60
  4. Step 4: Simplify right side
    114,865.60x = 6,889,411,718.59
  5. Step 5: Solve for x
    x = 6,889,411,718.59/114,865.60
  6. Step 6: Final answer
    x = 59,978.02

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1.5x scale

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.