Home / 152,160.12-209,956.86-98,447.40

Finding the Fourth Proportional to 152,160.12, 209,956.86 and 98,447.40

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Solution

The fourth proportional to 152,160.12, 209,956.86 and 98,447.40 is: 135,841.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,160.12 : 209,956.86 = 98,447.40 : x
  2. Step 2: Convert to fraction form
    152,160.12/209,956.86 = 98,447.40/x
  3. Step 3: Cross multiply
    152,160.12x = 209,956.86 × 98,447.40
  4. Step 4: Simplify right side
    152,160.12x = 20,669,706,979.16
  5. Step 5: Solve for x
    x = 20,669,706,979.16/152,160.12
  6. Step 6: Final answer
    x = 135,841.82

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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.