Home / 112,783.72-155,629.54-62,477.80

Finding the Fourth Proportional to 112,783.72, 155,629.54 and 62,477.80

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Solution

The fourth proportional to 112,783.72, 155,629.54 and 62,477.80 is: 86,212.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,783.72 : 155,629.54 = 62,477.80 : x
  2. Step 2: Convert to fraction form
    112,783.72/155,629.54 = 62,477.80/x
  3. Step 3: Cross multiply
    112,783.72x = 155,629.54 × 62,477.80
  4. Step 4: Simplify right side
    112,783.72x = 9,723,391,274.21
  5. Step 5: Solve for x
    x = 9,723,391,274.21/112,783.72
  6. Step 6: Final answer
    x = 86,212.72

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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.