Home / 112,965.52-155,911.08-62,680.72

Finding the Fourth Proportional to 112,965.52, 155,911.08 and 62,680.72

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Solution

The fourth proportional to 112,965.52, 155,911.08 and 62,680.72 is: 86,509.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,965.52 : 155,911.08 = 62,680.72 : x
  2. Step 2: Convert to fraction form
    112,965.52/155,911.08 = 62,680.72/x
  3. Step 3: Cross multiply
    112,965.52x = 155,911.08 × 62,680.72
  4. Step 4: Simplify right side
    112,965.52x = 9,772,618,750.38
  5. Step 5: Solve for x
    x = 9,772,618,750.38/112,965.52
  6. Step 6: Final answer
    x = 86,509.75

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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.