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Finding the Fourth Proportional to 158,205.79, 218,096.92 and 112,805.08

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Solution

The fourth proportional to 158,205.79, 218,096.92 and 112,805.08 is: 155,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,205.79 : 218,096.92 = 112,805.08 : x
  2. Step 2: Convert to fraction form
    158,205.79/218,096.92 = 112,805.08/x
  3. Step 3: Cross multiply
    158,205.79x = 218,096.92 × 112,805.08
  4. Step 4: Simplify right side
    158,205.79x = 24,602,440,508.35
  5. Step 5: Solve for x
    x = 24,602,440,508.35/158,205.79
  6. Step 6: Final answer
    x = 155,509.10

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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.