Home / 126,077,871.61-174,043,253.12-81,445,605.80

Finding the Fourth Proportional to 126,077,871.61, 174,043,253.12 and 81,445,605.80

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Solution

The fourth proportional to 126,077,871.61, 174,043,253.12 and 81,445,605.80 is: 112,430,976.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,077,871.61 : 174,043,253.12 = 81,445,605.80 : x
  2. Step 2: Convert to fraction form
    126,077,871.61/174,043,253.12 = 81,445,605.80/x
  3. Step 3: Cross multiply
    126,077,871.61x = 174,043,253.12 × 81,445,605.80
  4. Step 4: Simplify right side
    126,077,871.61x = 14,175,058,185,326,032
  5. Step 5: Solve for x
    x = 14,175,058,185,326,032/126,077,871.61
  6. Step 6: Final answer
    x = 112,430,976.22

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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.