Home / 155,521.12-214,565.52-87,524.32

Finding the Fourth Proportional to 155,521.12, 214,565.52 and 87,524.32

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Solution

The fourth proportional to 155,521.12, 214,565.52 and 87,524.32 is: 120,753.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,521.12 : 214,565.52 = 87,524.32 : x
  2. Step 2: Convert to fraction form
    155,521.12/214,565.52 = 87,524.32/x
  3. Step 3: Cross multiply
    155,521.12x = 214,565.52 × 87,524.32
  4. Step 4: Simplify right side
    155,521.12x = 18,779,701,233.45
  5. Step 5: Solve for x
    x = 18,779,701,233.45/155,521.12
  6. Step 6: Final answer
    x = 120,753.38

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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.