Home / 210,878.46-290,983.59-125,977.50

Finding the Fourth Proportional to 210,878.46, 290,983.59 and 125,977.50

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Solution

The fourth proportional to 210,878.46, 290,983.59 and 125,977.50 is: 173,831.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,878.46 : 290,983.59 = 125,977.50 : x
  2. Step 2: Convert to fraction form
    210,878.46/290,983.59 = 125,977.50/x
  3. Step 3: Cross multiply
    210,878.46x = 290,983.59 × 125,977.50
  4. Step 4: Simplify right side
    210,878.46x = 36,657,385,209.23
  5. Step 5: Solve for x
    x = 36,657,385,209.23/210,878.46
  6. Step 6: Final answer
    x = 173,831.81

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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.