Home / 112,848.14-155,801.27-72,631.79

Finding the Fourth Proportional to 112,848.14, 155,801.27 and 72,631.79

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Solution

The fourth proportional to 112,848.14, 155,801.27 and 72,631.79 is: 100,277.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,848.14 : 155,801.27 = 72,631.79 : x
  2. Step 2: Convert to fraction form
    112,848.14/155,801.27 = 72,631.79/x
  3. Step 3: Cross multiply
    112,848.14x = 155,801.27 × 72,631.79
  4. Step 4: Simplify right side
    112,848.14x = 11,316,125,111.20
  5. Step 5: Solve for x
    x = 11,316,125,111.20/112,848.14
  6. Step 6: Final answer
    x = 100,277.47

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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.