Home / 112,902,979.74-169,334,267.45-71,840,443.02

Finding the Fourth Proportional to 112,902,979.74, 169,334,267.45 and 71,840,443.02

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Solution

The fourth proportional to 112,902,979.74, 169,334,267.45 and 71,840,443.02 is: 107,747,809.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,902,979.74 : 169,334,267.45 = 71,840,443.02 : x
  2. Step 2: Convert to fraction form
    112,902,979.74/169,334,267.45 = 71,840,443.02/x
  3. Step 3: Cross multiply
    112,902,979.74x = 169,334,267.45 × 71,840,443.02
  4. Step 4: Simplify right side
    112,902,979.74x = 12,165,048,791,715,962
  5. Step 5: Solve for x
    x = 12,165,048,791,715,962/112,902,979.74
  6. Step 6: Final answer
    x = 107,747,809.84

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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.