Home / 137,652.12-190,041.36-86,708.52

Finding the Fourth Proportional to 137,652.12, 190,041.36 and 86,708.52

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Solution

The fourth proportional to 137,652.12, 190,041.36 and 86,708.52 is: 119,709.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,652.12 : 190,041.36 = 86,708.52 : x
  2. Step 2: Convert to fraction form
    137,652.12/190,041.36 = 86,708.52/x
  3. Step 3: Cross multiply
    137,652.12x = 190,041.36 × 86,708.52
  4. Step 4: Simplify right side
    137,652.12x = 16,478,205,064.39
  5. Step 5: Solve for x
    x = 16,478,205,064.39/137,652.12
  6. Step 6: Final answer
    x = 119,709.05

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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.