Home / 223,101.90-307,881.02-121,127.50

Finding the Fourth Proportional to 223,101.90, 307,881.02 and 121,127.50

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Solution

The fourth proportional to 223,101.90, 307,881.02 and 121,127.50 is: 167,156.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,101.90 : 307,881.02 = 121,127.50 : x
  2. Step 2: Convert to fraction form
    223,101.90/307,881.02 = 121,127.50/x
  3. Step 3: Cross multiply
    223,101.90x = 307,881.02 × 121,127.50
  4. Step 4: Simplify right side
    223,101.90x = 37,292,858,250.05
  5. Step 5: Solve for x
    x = 37,292,858,250.05/223,101.90
  6. Step 6: Final answer
    x = 167,156.17

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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.