Home / 105,158,424.40-157,737,636.60-87,242,520.40

Finding the Fourth Proportional to 105,158,424.40, 157,737,636.60 and 87,242,520.40

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Solution

The fourth proportional to 105,158,424.40, 157,737,636.60 and 87,242,520.40 is: 130,863,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,158,424.40 : 157,737,636.60 = 87,242,520.40 : x
  2. Step 2: Convert to fraction form
    105,158,424.40/157,737,636.60 = 87,242,520.40/x
  3. Step 3: Cross multiply
    105,158,424.40x = 157,737,636.60 × 87,242,520.40
  4. Step 4: Simplify right side
    105,158,424.40x = 13,761,428,978,923,288
  5. Step 5: Solve for x
    x = 13,761,428,978,923,288/105,158,424.40
  6. Step 6: Final answer
    x = 130,863,780.60

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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.