Home / 113,609,979.20-170,414,968.80-86,736,123.20

Finding the Fourth Proportional to 113,609,979.20, 170,414,968.80 and 86,736,123.20

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Solution

The fourth proportional to 113,609,979.20, 170,414,968.80 and 86,736,123.20 is: 130,104,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,609,979.20 : 170,414,968.80 = 86,736,123.20 : x
  2. Step 2: Convert to fraction form
    113,609,979.20/170,414,968.80 = 86,736,123.20/x
  3. Step 3: Cross multiply
    113,609,979.20x = 170,414,968.80 × 86,736,123.20
  4. Step 4: Simplify right side
    113,609,979.20x = 14,781,133,728,960,958
  5. Step 5: Solve for x
    x = 14,781,133,728,960,958/113,609,979.20
  6. Step 6: Final answer
    x = 130,104,184.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.