Home / 112,782.72-155,628.16-62,476.80

Finding the Fourth Proportional to 112,782.72, 155,628.16 and 62,476.80

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Solution

The fourth proportional to 112,782.72, 155,628.16 and 62,476.80 is: 86,211.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,782.72 : 155,628.16 = 62,476.80 : x
  2. Step 2: Convert to fraction form
    112,782.72/155,628.16 = 62,476.80/x
  3. Step 3: Cross multiply
    112,782.72x = 155,628.16 × 62,476.80
  4. Step 4: Simplify right side
    112,782.72x = 9,723,149,426.69
  5. Step 5: Solve for x
    x = 9,723,149,426.69/112,782.72
  6. Step 6: Final answer
    x = 86,211.34

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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.