Home / 185,985.10-256,661.09-101,102.30

Finding the Fourth Proportional to 185,985.10, 256,661.09 and 101,102.30

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Solution

The fourth proportional to 185,985.10, 256,661.09 and 101,102.30 is: 139,522.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,985.10 : 256,661.09 = 101,102.30 : x
  2. Step 2: Convert to fraction form
    185,985.10/256,661.09 = 101,102.30/x
  3. Step 3: Cross multiply
    185,985.10x = 256,661.09 × 101,102.30
  4. Step 4: Simplify right side
    185,985.10x = 25,949,026,519.51
  5. Step 5: Solve for x
    x = 25,949,026,519.51/185,985.10
  6. Step 6: Final answer
    x = 139,522.07

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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.