Home / 112,530.16-155,285.34-61,532.77

Finding the Fourth Proportional to 112,530.16, 155,285.34 and 61,532.77

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Solution

The fourth proportional to 112,530.16, 155,285.34 and 61,532.77 is: 84,911.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,530.16 : 155,285.34 = 61,532.77 : x
  2. Step 2: Convert to fraction form
    112,530.16/155,285.34 = 61,532.77/x
  3. Step 3: Cross multiply
    112,530.16x = 155,285.34 × 61,532.77
  4. Step 4: Simplify right side
    112,530.16x = 9,555,137,110.59
  5. Step 5: Solve for x
    x = 9,555,137,110.59/112,530.16
  6. Step 6: Final answer
    x = 84,911.79

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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.