Home / 137,058.02-189,129.69-83,335.58

Finding the Fourth Proportional to 137,058.02, 189,129.69 and 83,335.58

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Solution

The fourth proportional to 137,058.02, 189,129.69 and 83,335.58 is: 114,996.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,058.02 : 189,129.69 = 83,335.58 : x
  2. Step 2: Convert to fraction form
    137,058.02/189,129.69 = 83,335.58/x
  3. Step 3: Cross multiply
    137,058.02x = 189,129.69 × 83,335.58
  4. Step 4: Simplify right side
    137,058.02x = 15,761,232,411.37
  5. Step 5: Solve for x
    x = 15,761,232,411.37/137,058.02
  6. Step 6: Final answer
    x = 114,996.79

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1.5x scale

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.