Home / 112,021.52-154,592.88-64,283.36

Finding the Fourth Proportional to 112,021.52, 154,592.88 and 64,283.36

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Solution

The fourth proportional to 112,021.52, 154,592.88 and 64,283.36 is: 88,712.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,021.52 : 154,592.88 = 64,283.36 : x
  2. Step 2: Convert to fraction form
    112,021.52/154,592.88 = 64,283.36/x
  3. Step 3: Cross multiply
    112,021.52x = 154,592.88 × 64,283.36
  4. Step 4: Simplify right side
    112,021.52x = 9,937,749,758.48
  5. Step 5: Solve for x
    x = 9,937,749,758.48/112,021.52
  6. Step 6: Final answer
    x = 88,712.86

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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.