Home / 112,630.50-155,464.74-64,915.65

Finding the Fourth Proportional to 112,630.50, 155,464.74 and 64,915.65

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Solution

The fourth proportional to 112,630.50, 155,464.74 and 64,915.65 is: 89,603.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,630.50 : 155,464.74 = 64,915.65 : x
  2. Step 2: Convert to fraction form
    112,630.50/155,464.74 = 64,915.65/x
  3. Step 3: Cross multiply
    112,630.50x = 155,464.74 × 64,915.65
  4. Step 4: Simplify right side
    112,630.50x = 10,092,094,649.18
  5. Step 5: Solve for x
    x = 10,092,094,649.18/112,630.50
  6. Step 6: Final answer
    x = 89,603.57

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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.