Home / 105,559,405.40-158,339,108.10-87,702,987.80

Finding the Fourth Proportional to 105,559,405.40, 158,339,108.10 and 87,702,987.80

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Solution

The fourth proportional to 105,559,405.40, 158,339,108.10 and 87,702,987.80 is: 131,554,481.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,559,405.40 : 158,339,108.10 = 87,702,987.80 : x
  2. Step 2: Convert to fraction form
    105,559,405.40/158,339,108.10 = 87,702,987.80/x
  3. Step 3: Cross multiply
    105,559,405.40x = 158,339,108.10 × 87,702,987.80
  4. Step 4: Simplify right side
    105,559,405.40x = 13,886,812,865,957,180
  5. Step 5: Solve for x
    x = 13,886,812,865,957,180/105,559,405.40
  6. Step 6: Final answer
    x = 131,554,481.70

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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.