Home / 213,726.64-294,953.52-128,871.04

Finding the Fourth Proportional to 213,726.64, 294,953.52 and 128,871.04

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Solution

The fourth proportional to 213,726.64, 294,953.52 and 128,871.04 is: 177,848.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,726.64 : 294,953.52 = 128,871.04 : x
  2. Step 2: Convert to fraction form
    213,726.64/294,953.52 = 128,871.04/x
  3. Step 3: Cross multiply
    213,726.64x = 294,953.52 × 128,871.04
  4. Step 4: Simplify right side
    213,726.64x = 38,010,966,874.06
  5. Step 5: Solve for x
    x = 38,010,966,874.06/213,726.64
  6. Step 6: Final answer
    x = 177,848.52

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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.