Home / 112,515.26-155,269.55-64,120.06

Finding the Fourth Proportional to 112,515.26, 155,269.55 and 64,120.06

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Solution

The fourth proportional to 112,515.26, 155,269.55 and 64,120.06 is: 88,484.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,515.26 : 155,269.55 = 64,120.06 : x
  2. Step 2: Convert to fraction form
    112,515.26/155,269.55 = 64,120.06/x
  3. Step 3: Cross multiply
    112,515.26x = 155,269.55 × 64,120.06
  4. Step 4: Simplify right side
    112,515.26x = 9,955,892,153.40
  5. Step 5: Solve for x
    x = 9,955,892,153.40/112,515.26
  6. Step 6: Final answer
    x = 88,484.82

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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.