Home / 102,137,065.75-140,784,496.90-69,085,261.45

Finding the Fourth Proportional to 102,137,065.75, 140,784,496.90 and 69,085,261.45

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Solution

The fourth proportional to 102,137,065.75, 140,784,496.90 and 69,085,261.45 is: 95,226,289.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,137,065.75 : 140,784,496.90 = 69,085,261.45 : x
  2. Step 2: Convert to fraction form
    102,137,065.75/140,784,496.90 = 69,085,261.45/x
  3. Step 3: Cross multiply
    102,137,065.75x = 140,784,496.90 × 69,085,261.45
  4. Step 4: Simplify right side
    102,137,065.75x = 9,726,133,776,443,216
  5. Step 5: Solve for x
    x = 9,726,133,776,443,216/102,137,065.75
  6. Step 6: Final answer
    x = 95,226,289.35

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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.