Home / 110,737.15-152,764.11-72,479.85

Finding the Fourth Proportional to 110,737.15, 152,764.11 and 72,479.85

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Solution

The fourth proportional to 110,737.15, 152,764.11 and 72,479.85 is: 99,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,737.15 : 152,764.11 = 72,479.85 : x
  2. Step 2: Convert to fraction form
    110,737.15/152,764.11 = 72,479.85/x
  3. Step 3: Cross multiply
    110,737.15x = 152,764.11 × 72,479.85
  4. Step 4: Simplify right side
    110,737.15x = 11,072,319,415.78
  5. Step 5: Solve for x
    x = 11,072,319,415.78/110,737.15
  6. Step 6: Final answer
    x = 99,987.40

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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.