Home / 203,050.08-280,205.10-112,406.16

Finding the Fourth Proportional to 203,050.08, 280,205.10 and 112,406.16

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Solution

The fourth proportional to 203,050.08, 280,205.10 and 112,406.16 is: 155,118.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,050.08 : 280,205.10 = 112,406.16 : x
  2. Step 2: Convert to fraction form
    203,050.08/280,205.10 = 112,406.16/x
  3. Step 3: Cross multiply
    203,050.08x = 280,205.10 × 112,406.16
  4. Step 4: Simplify right side
    203,050.08x = 31,496,779,303.42
  5. Step 5: Solve for x
    x = 31,496,779,303.42/203,050.08
  6. Step 6: Final answer
    x = 155,118.28

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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.