Home / 112,124.72-154,726.56-63,720.36

Finding the Fourth Proportional to 112,124.72, 154,726.56 and 63,720.36

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Solution

The fourth proportional to 112,124.72, 154,726.56 and 63,720.36 is: 87,930.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,124.72 : 154,726.56 = 63,720.36 : x
  2. Step 2: Convert to fraction form
    112,124.72/154,726.56 = 63,720.36/x
  3. Step 3: Cross multiply
    112,124.72x = 154,726.56 × 63,720.36
  4. Step 4: Simplify right side
    112,124.72x = 9,859,232,104.76
  5. Step 5: Solve for x
    x = 9,859,232,104.76/112,124.72
  6. Step 6: Final answer
    x = 87,930.94

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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.