Home / 140,005.10-210,007.65-123,383.90

Finding the Fourth Proportional to 140,005.10, 210,007.65 and 123,383.90

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Solution

The fourth proportional to 140,005.10, 210,007.65 and 123,383.90 is: 185,075.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,005.10 : 210,007.65 = 123,383.90 : x
  2. Step 2: Convert to fraction form
    140,005.10/210,007.65 = 123,383.90/x
  3. Step 3: Cross multiply
    140,005.10x = 210,007.65 × 123,383.90
  4. Step 4: Simplify right side
    140,005.10x = 25,911,562,886.84
  5. Step 5: Solve for x
    x = 25,911,562,886.84/140,005.10
  6. Step 6: Final answer
    x = 185,075.85

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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.