Home / 137,272,071.60-189,462,954.33-81,548,448.33

Finding the Fourth Proportional to 137,272,071.60, 189,462,954.33 and 81,548,448.33

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Solution

The fourth proportional to 137,272,071.60, 189,462,954.33 and 81,548,448.33 is: 112,553,192.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,272,071.60 : 189,462,954.33 = 81,548,448.33 : x
  2. Step 2: Convert to fraction form
    137,272,071.60/189,462,954.33 = 81,548,448.33/x
  3. Step 3: Cross multiply
    137,272,071.60x = 189,462,954.33 × 81,548,448.33
  4. Step 4: Simplify right side
    137,272,071.60x = 15,450,409,941,137,124
  5. Step 5: Solve for x
    x = 15,450,409,941,137,124/137,272,071.60
  6. Step 6: Final answer
    x = 112,553,192.80

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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.