Home / 129,915.32-179,282.86-70,299.32

Finding the Fourth Proportional to 129,915.32, 179,282.86 and 70,299.32

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Solution

The fourth proportional to 129,915.32, 179,282.86 and 70,299.32 is: 97,012.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,915.32 : 179,282.86 = 70,299.32 : x
  2. Step 2: Convert to fraction form
    129,915.32/179,282.86 = 70,299.32/x
  3. Step 3: Cross multiply
    129,915.32x = 179,282.86 × 70,299.32
  4. Step 4: Simplify right side
    129,915.32x = 12,603,463,145.66
  5. Step 5: Solve for x
    x = 12,603,463,145.66/129,915.32
  6. Step 6: Final answer
    x = 97,012.91

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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.